Name: iPod 4G Monochrome — Replacement Headphone Jack (Thick - 40GB)
Brand: Apple
SKU: IP4G-HEADPHONE-JACK-THICK
Price: 30.95 USD
Availability: InStock

Part details

About this part

Overview

Headphone Jack 40GB

Replacement headphone jack assembly for iPod 4G Monochrome. Use it for damaged audio-output hardware, channel issues, or related Hold-switch hardware on models where those parts share the same assembly.

Shop iPod 4G parts and services → Start a free diagnostic →

Fitment snapshot

FitsiPod 4G Monochrome

Variant matchSee Compatible Variants

ReleasedJuly 19, 2004

TypeHeadphone Jack

Confirm model, generation, part number, and fitment details before ordering.

Product Overview

This headphone jack listing covers Replacement Headphone Jack (Thick - 40GB) and its own connector path on the iPod 4th Generation (Monochrome).

Use Part Details for the confirmed part-number reference. Use the Compatible Variants table below to confirm capacity, color, case, or order-number fitment.

Choose this part when your iPod shows Skipping Songs or Headphone Jack Not Working; the checks below help confirm the right part before you order.

Choose Your Option

This part comes in multiple variants. Confirm your iPod's capacity, case depth, and order number before ordering.

Not sure which case you have? Settings → About on the iPod names its capacity, and the two bodies differ by hand: Apple lists the 20GB model at 0.57 in deep and 5.6 oz, the 40GB model at 0.69 in deep and 6.2 oz, so the thick 40GB unit is visibly deeper at the seam and noticeably heavier.

20GB / Thin Replacement Headphone Jack (Thin - 20GB) Capacity: 20GB · Color: White, Black/Red (U2), White (HP) · Case: thin View this option →

40GB / Thick Replacement Headphone Jack (Thick - 40GB) Capacity: 40GB · Color: White, White (HP) · Case: thick

Thin and thick 4G Monochrome headphone jack / Hold switch assemblies are separate fitment paths.

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What Is Included

Included

✓ Replacement Headphone Jack (Thick - 40GB) ✓ One plastic pry tool ✓ 1-year limited warranty

Before You Discard The Original

The small white plastic Hold slider is sold both fitted and separately, so a replacement assembly may arrive with or without one. Nothing beyond the items listed under Included is in the box. Keep your original slider until you have the replacement in hand and can see whether it carries one — transferring it back is easy, sourcing a lost one is not.

Condition: Used factory-original part. Quantity and exclusions: The listed part, set, pair, or configuration above is supplied with exactly one plastic pry tool. No other parts, tools, adhesives, or materials are included unless they are explicitly listed above.

Quick Buying Check

Buy this when

Headphone Jack Not Working: Use the headphone/Hold check when headphone output or Hold-switch behavior is isolated from dock audio, board audio, and connector seating.

Diagnose first when

Match headphone/hold assembly to thin 20GB or thick 40GB rear-case depth.

Fit and specs

Specifications & Fitment

Part Details

Detail	Value
Model Number	A1059
EMC	EMC 1995
Condition	Used — factory original Apple part. Normal cosmetic wear expected.
Jack Size	3.5mm
Includes Hold Switch	Yes — the Hold switch and its ribbon are part of this assembly. The small white plastic Hold slider that shows through the case is a separate piece; see Before You Discard The Original.
OEM Part	`632-0260-A`, `820-1635-A`

Compatible Variants

Order Number	Capacity	Color	Case	Compatible	Notes
M9268LL/A	40GB	White	thick	Yes	—
PE436A	40GB	White (HP)	thick	Yes	—
M9787LL/A	20GB	Black/Red (U2)	thin	No— wrong case depth	Owner-verified: this thick 40GB assembly is not a supported fit for thin-case builds. Use the Replacement Headphone Jack (Thin - 20GB) listing instead.
M9282LL/A	20GB	White	thin	No— wrong case depth	Owner-verified: this thick 40GB assembly is not a supported fit for thin-case builds. Use the Replacement Headphone Jack (Thin - 20GB) listing instead.
PE435A	20GB	White (HP)	thin	No— wrong case depth	Owner-verified: this thick 40GB assembly is not a supported fit for thin-case builds. Use the Replacement Headphone Jack (Thin - 20GB) listing instead.

Install and repair

Install Overview

Before You Start

Confirm the model and reset state

Turn Hold off, reset with Menu + Select for about 10 seconds, and confirm the model and variant before opening the iPod. Menu + Play and Rewind + Fast-Forward are the earlier touch-wheel iPods' combinations; some guides still print them.

Open the case slowly

Treat case opening as the highest handling risk. Work around the seams gently and stop if the shell, clips, or internal stack resist.

Protect nearby connectors

Do not pull the halves apart or side-load board sockets. Reseat nearby ribbons and connectors before blaming a replacement headphone jack assembly.

Disassembly Guide

Disassembly guide summary: iPod 4th Generation or Photo Headphone Jack Replacement.

Steps8

SolderingNo

Show all 8 installation steps

Before you open the iPod, confirm that the hold switch is in the locked setting. The orange bar should be showing, indicating hold is active.

Move an opening pick as far as possible into the gap between the plastic front and the metal back panel, on the right edge of the iPod. You may have to rock the pick back and forth to move it in farther. With the opening pick, lever up against the plastic front panel and release 5 retaining tabs. Slide the pick along the iPod edge and keep levering gently until the remaining retaining tabs release. In this step, after all five tabs along the right edge are free, the case should easily open.

The iPod case is now open, but do not separate the two halves yet. An orange ribbon cable still connects the headphone jack to the logic board. With the dock connector edge at the top, open the case like a book and set the rear panel beside the iPod front half.

With a plastic tool or your fingernails, carefully detach the orange headphone jack cable. Make sure to draw straight up on the connector, not the cable itself. This fragile ribbon cable can stay connected for a battery replacement. Prop and tape the rear case against a box so the headphone jack remains connected to the motherboard without straining its cable while you work.

Take out the 2 silver T6 Torx screws from the headphone jack.

Grasp the headphone jack board and raise it out of the iPod.

In this step, turn the headphone jack board over. With a fingertip or spudger, gently flip up the black connector securing the headphone jack cable connector in place.

Draw the orange headphone jack cable directly out of its connector.

Product-specific placement, reassembly, and check

Prepare and access. Confirm the exact model and listing fit first. Use the existing steps as a disassembly guide, gather the specified tools, disconnect power where applicable, and keep screws and cable positions organized.
Place Replacement Headphone Jack (Thick - 40GB). Align the jack and Hold-switch assembly with the housing openings and seat its cable without twisting or trapping it.
Reassemble without force. Reverse only the access steps needed for this repair, keep cables clear of case edges and screw posts, and close clips in stages.
Validate before final closure. Before final closure, test left/right audio, plug detection, and the Hold switch while the assembly remains accessible.

Stop condition: Stop if a connector, latch, screw, clip, housing edge, or the replacement part resists normal alignment. Recheck model fit, orientation, cable routing, and trapped hardware instead of forcing it.

After This Repair

Check	What to do
Test audio and Hold	Use known-good headphones and check both channels, static, plug movement, and Hold-switch behavior.
Still not working?	Compare headphone output with dock or line-out behavior when the model supports it, then inspect ribbon seating.

Troubleshooting

Diagnostic Failure Cards

Use these model-specific failure cards to decide whether this headphone jack assembly is the right part, a nearby part needs checking first, or escalation makes more sense after simpler checks.

Symptom	What it means & what to check
Symptom remains after basic checks	What you may see: The iPod still points back to Replacement Headphone Jack (Thick - 40GB) after cable seating, battery stability, and nearby connector checks. Check first: Retest with known-good cables or adjacent parts where practical before ordering. Check next: A nearby cable, connector, battery, storage device, display path, audio path, or board path can mimic a bad headphone jack assembly.
Symptom changes when touched or reseated	What you may see: The symptom changes after moving the part, reseating a cable, or applying light pressure near the connector path. Check first: Inspect the connector, latch, flex, solder joints, and nearby board area for damage or corrosion. Check next: This can still be a connection issue rather than a failed headphone jack assembly alone.
Problem began after another repair	What you may see: The issue started immediately after opening the iPod, replacing another part, or disturbing an internal cable. Check first: Reopen only as far as needed and inspect the exact area touched during the previous repair. Check next: Post-repair symptoms often trace to seating, latch, screw, or cable issues before Replacement Headphone Jack (Thick - 40GB) itself is confirmed bad.
Hold switch is stuck, locked, or not reporting correctly	What you may notice People report the iPod staying locked, the lock indicator not clearing, or the Hold switch not matching the device behavior. The iPod appears locked or the Hold switch does not match the device behavior. Diagnose first when Move the Hold switch and watch whether the lock indicator changes. Check the headphone/hold ribbon if the symptom started after opening the iPod. This thick 40 GB assembly is not interchangeable with the other case thickness. Confirm Hold is off before judging the controls. Separate center-button-only failure from a dead scroll ring or multiple failed buttons. Inspect click-wheel ribbon seating, latch position, and ground path after reassembly. Match the headphone/hold assembly to the exact case thickness before ordering. Compare headphone output, dock or line-out output, and Hold-switch behavior before replacing the headphone/hold assembly. Similar issues to separate On this model the Hold switch is part of the headphone/hold assembly. A wrong variant, loose ribbon, damaged switch, or nearby connector problem can all keep the device behaving as if Hold is active. Click-wheel assembly, button pad, or flex path. Choose this headphone/hold assembly only when the physical Hold switch or its ribbon path is the failing path. Choose this headphone jack / hold-switch assembly when the symptom remains isolated to this assembly, its ribbon, or its connector path after first checks. Check another part first Check click-wheel input only after the Hold switch path is ruled out. Check the headphone/hold assembly for confirmed Hold switch faults before blaming the click wheel. Repair or replacement paths Replace the headphone/hold assembly when the switch or its flex path is damaged. Reseat or inspect the connector first when the switch changed behavior after service. Replace the click wheel when the assembly or flex remains damaged after seating checks.
Audio or Hold problems after repair	What you may notice People report headphone audio, Hold behavior, or both changing after battery, headphone/hold, or internal service. A new symptom appeared after battery, storage, audio, display, or control work. Diagnose first when Confirm the replacement assembly matches the thin or thick case. Inspect the headphone/hold ribbon and connector before ordering a second part. Inspect for liquid, corrosion, residue, torn flex material, or connector damage. Similar issues to separate Post-repair symptoms can point to a disturbed headphone/hold ribbon, wrong variant part, or nearby connector damage. Check post-repair regression, connector seating, and board-side damage before ordering. Choose this headphone/hold assembly only when repair work damaged the jack, switch, or ribbon. Check another part first Check the connector and the part variant first when the symptom began immediately after service. Repair or replacement paths Reseat the ribbon and correct the part variant first. Replace the assembly when the flex, switch, or jack-board is damaged.
Fitment or model-variant boundary	What you may notice A similar-looking part may not match the exact capacity, case thickness, generation, or color. Similar issues to separate Check fitment / model variant boundary, connector seating, and board-side damage before ordering. Check another part first Check the Replacement Click Wheel Assembly when controls, wheel, center/select, menu, hold, or unresponsive-button symptoms are the main problem. Check the logic board (the 30-pin port is soldered to it) when charging, sync, usb, firewire, or dock-connection behavior is the main problem.
Headphone output compared with dock or line-out audio	What you may notice Audio behaves differently through headphones and a dock or line-out accessory. Both headphone and dock output share the same failure. Diagnose first when Test known-good headphones before opening the iPod. Compare headphone output with dock or line-out audio on the same track. Inspect and reseat the headphone/hold ribbon or connector connection if the iPod was opened. Similar issues to separate Headphone jack contacts or headphone/hold assembly. Headphone/hold ribbon, storage-ribbon seating, or board-side connector. Check another part first If both headphone and dock or line-out audio fail, the jack alone is unlikely. Board-level audio diagnosis belongs after output-path and ribbon checks. Repair or replacement paths Replace the headphone/hold assembly when the failure is isolated to the headphone path. Cautions Do not treat a broad no-audio symptom as proof that the headphone jack has failed.
No sound or missing headphone audio	What you may notice People describe music playing with little or no sound from the headphone jack, or audio that disappears even though the iPod still appears to run. No sound from the headphone jack. Audio disappears while the iPod otherwise appears to run. Diagnose first when Test with known-good headphones before opening the iPod. Check whether audio behaves differently through the dock connector and the headphone jack. Inspect the headphone/hold ribbon and connector if the iPod has been opened. Play the same known-good track through the headphone jack, then through a dock or line-out accessory if you have one. If dock or line-out audio works but headphones do not, focus on the headphone jack, jack contacts, headphone/hold ribbon, and board connector. If both headphone and dock output are silent, pause before buying the jack and continue with logic-board or audio-circuit diagnosis. Similar issues to separate The headphone/hold assembly can be involved, but no-sound symptoms can also point to the jack connection, ribbon path, dock output path, or board-level audio. The path split matters: headphone-only failure points more toward the jack, headphone/hold ribbon, or board connector, while both headphone and dock output failing points away from the jack alone. Choose this headphone/hold assembly only when the headphone jack or its ribbon path is the failing audio path. Check another part first Check the logic board or board-level audio path first when both the headphone jack and dock or line-out path are silent. Repair or replacement paths Reseat the headphone/hold ribbon when the symptom began after service. Replace the headphone/hold assembly when the jack, ribbon, or hold-board assembly is the suspect path. Use headphone/hold assembly replacement for a failure that follows only the headphone path. Do not treat the headphone jack as the first confirmed fix when every audio output path is silent.
Ribbon, connector, or ground-path checks	What you may notice A symptom starts after opening the iPod or disturbing an internal flex cable. Similar issues to separate Connector seating, ribbon damage, or ground-path issues can involve this part, a nearby connector, or a board path.
Liquid, corrosion, or residue context	What you may notice Symptoms follow liquid exposure, dirty contacts, corrosion, or residue. Similar issues to separate Liquid or corrosion can involve this part, a nearby connector, or a board path.
One-channel, static, or uneven headphone audio	What you may notice People report sound from only one side, static, uneven output, or audio that changes when the plug or case is moved. Sound plays in only one ear or one channel. Static, uneven volume, buzzing, or distortion through headphones. Diagnose first when Try another known-good headphone plug before ordering. Check whether light plug movement changes the channel or static behavior. If the iPod was recently opened, inspect the headphone/hold ribbon seating. Similar issues to separate This pattern can involve worn jack contacts, a poor headphone plug fit, a disturbed ribbon, or damage beyond the jack. Choose this headphone/hold assembly only when the one-channel or static symptom follows the jack or ribbon. Check another part first Check headphones and board-level audio first when the symptom does not react to the jack or ribbon path.
Headphone Jack / Hold-Switch Assembly appears unresponsive or intermittent	What you may notice People describe behavior where the headphone jack / hold-switch assembly seems dead, intermittent, or only partly responsive. Diagnose first when Inspect nearby connectors and flex paths if the iPod has been opened. Similar issues to separate Choose this headphone jack / hold-switch assembly only when the failing behavior follows the part or its own connection path.
Fitment and inspection notes	iPod 4G Monochrome 20GB thin headphone/hold assembly: that is the other fitment path, not this part. Use the Replacement Headphone Jack (Thin - 20GB) listing for a thin-case iPod.

Do Not Buy / Problems This Headphone Jack Assembly Does Not Fix

Situation	Start here instead
Variant or capacity does not match this listing	Use the Replacement Headphone Jack (Thin - 20GB) listing instead.
A symptom points to a different part	Start with battery for power/runtime symptoms; hard-drive cable for folder, clicking, or restore symptoms; LCD screen for display-only symptoms; headphone jack (thin 20GB) for audio or Hold-switch symptoms; click wheel for click-wheel or control symptoms; logic board for board-side damage or multi-system symptoms before buying this part.
The fault is clearly the storage, battery, or logic board — not the jack or Hold switch	Start with the hard drive, battery, or logic-board check for your model before buying this assembly.
Charging, swelling, runtime, or power is the primary problem	Confirm power, charging, and pack-condition clues before replacing this part.
Headphone and dock or line-out audio are both silent	Start with the logic board or audio-circuit check; a headphone-only failure is a reason to buy this assembly, not avoid it.

Worth Knowing

A1059 headphone jack / hold switch flex cable; distinguish flex cable identifiers from full assembly listings.

Questions

Frequently Asked Questions

Use these questions to narrow the part path before ordering. They keep each answer focused on a different diagnostic or fitment decision.

How do I choose the right headphone jack assembly?

Match capacity 40GB and color White, White (HP), case depth, and whether the Hold switch shares the same assembly on this model before ordering.

Can one-channel audio be because of something else?

Yes. Check headphones, the jack opening, debris, pressure on the case, ribbon seating, and board-side damage before treating the jack assembly as the only cause.

Very low volume with every setting turned up, on more than one pair of headphones, is a jack or headphone-contact fault on this model — there is no Volume Limit setting to check. Apple's 2004 guide for this iPod lists its whole Settings menu and there is no volume cap on it; owners of European-market units of this era report a fixed firmware cap with no menu to change it. Clean the jack opening, check the headphone/hold ribbon seating, and try a known-good plug before ordering.

Can the Hold switch be part of the headphone-jack assembly?

Move the Hold switch and watch whether the lock indicator changes. Inspect the headphone/hold ribbon if the symptom started after opening the iPod. Check the headphone/hold ribbon if the symptom started after opening the iPod. This thick 40 GB assembly is not interchangeable with the other case thickness. Choose this assembly only when Hold switch behavior is the failing path.

Which thin or thick headphone/hold assembly fits this iPod?

Match the assembly to capacity and case thickness before using audio or Hold symptoms to choose a part. This part is the right choice for thick 40 GB fitment. Check variant fit before replacing another audio or input part.

Is this an iPod Classic?

Apple's 'Classic' branding started with the 6th Generation (2007). This is the iPod 4th Generation (Click Wheel), the monochrome-screen model from 2004. Apple's official name for this model is iPod (Click Wheel).

Does capacity matter for this part?

Use the Specifications & Fitment table as the source of truth. Match model, capacity, case depth, connector style, and order-number family before ordering.

You May Also Want

A fresh battery is often replaced during the same repair while the iPod is open.

Flash storage is the common upgrade path while the iPod is already open.

Related: Headphone Jack Flex Cable

If the fault follows the orange ribbon rather than the jack board, the flex is sold on its own.

Headphone jack is accessible from the top — front panel removal may be needed.

Browse all iPod 4G repair parts → Start a free diagnostic →

Search terms

Some buyers search for "headphone jack hold switch assembly", "bracket", "lock switch", or "iPod Classic 4th Generation headphone jack"; confirm the checks above point to this same part before ordering.

Why people land on this part

Some buyers search for "Won't Sync" or "white screen"; confirm the checks above point to this same part before ordering.

Also searched as: ipod 4th generation monochrome headphone jack replacement, ipod 4g headphone jack cable, Headphone Jack Not Working, jack unit, jack assembly, no audio, one ear sound, won't charge with new battery.

Questions people ask

does this include the headphone jack cable.

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iPod 4G Monochrome — Replacement Headphone Jack (Thick - 40GB)

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About this part

Product Overview

Choose Your Option