Transmission Oil Filter for 2003-2004 GMC Sierra 1500 & More - Baldwin 20004

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$33.99
MPN: 20004
UPC: 791440065796
Item Package Quantity: 1
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Baldwin Transmission Oil Filter P/N:20004
Baldwin Transmission Oil Filter P/N:20004
$33.99

Keep your automatic transmission fluid clean and circulating with the Baldwin Transmission Oil Filter 20004. This direct-fit filter suits General Motors and medium-duty applications running the Allison LCT 1000, 2000 and 2400 transmission series, covering trucks and buses such as the 2003-2004 Chevrolet Silverado 1500 [V8-6.0L], 2001-2012 Chevrolet Silverado 2500 HD [V8-6.6L], 2003-2004 GMC Sierra 1500 [V8-6.0L] and the 2006 Hummer H1, plus a wide range of Blue Bird, Freightliner, Hino and IC Corporation vehicles — see the Buyer's Guide tab for the full list.

  • What it does: strains the automatic transmission fluid to trap wear debris and contaminants before they recirculate through the transmission.
  • Allison direct replacement: replaces Allison 29537965 on LCT 1000, 2000 and 2400 series units.
  • Companion option: Baldwin's related 20016 ships with a pan gasket if your service calls for one.
  • Country of origin: Taiwan.

Changing the transmission filter at the recommended service interval helps maintain proper fluid flow and protect internal components. If reduced flow from a clogged filter is contributing to slipping, delayed engagement or a whine, installing a fresh filter is part of addressing it — diagnose the cause first.

Interchange: B-202
B202 · 29537514 · 29537965 · 5482 · TF1209 · 2XYH9 · 4ZLE8 · TF183 · F341 · 82145 · 15800

This part cross-references / interchanges with the following part numbers:

29537514, 29537965, 5482, TF1209, B-202, 20004, 2XYH9, 4ZLE8, TF183, F341, 82145, 15800

Frequently Asked Questions

What does the Baldwin 20004 do?

It filters the automatic transmission fluid, straining out wear debris and contaminants so cleaner fluid circulates through the transmission.

Which vehicles does it fit?

It's a direct-fit filter for GM and medium-duty applications using the Allison LCT 1000, 2000 and 2400 series, including Silverado, Sierra, Blue Bird, Freightliner, Hino and more. See the Buyer's Guide tab for the full list.

What Allison number does it replace?

It replaces Allison 29537965 and also interchanges with B-202, 29537514, 5482, TF1209, 2XYH9, 4ZLE8, TF183, F341, 82145 and 15800.

Does it come with a pan gasket?

Baldwin offers a related option, 20016, that ships with a pan gasket. If you need a gasket for the service, choose that companion part.

When should the transmission filter be replaced?

Replace it at the manufacturer's recommended service interval. Signs it may be clogged include slipping, delayed engagement or a whine, though those can have other causes — diagnose before replacing.