Allison 1000 Transmission Valve Body Chevy GMC 2500 3500 6.6L Duramax Diesel

Allison 1000 Transmission Valve Body Chevy GMC 2500 3500 6.6L Duramax Diesel

Used OEM unit pulled from an inspected donor transmission, cleaned and visually inspected before listing. The photos show the exact unit you will receive.

• SKU: G-AL1000-VB-U-01
• Includes: Solenoids
• Warranty: 30-day return-or-replace after delivery
• Shipping: UPS Ground from our Tennessee warehouse, 2 business day handling

OEM / interchange references (verify against your casting/tag):

• Identify by generation — the 4 do NOT interchange:
• 2001-2003: 6 solenoids, 1 tube (5-speed)
• 2004-2005: 7 solenoids, 1 tube — upper casting 29539798 / solenoid-G housing 29539796; reman 29541572-RZ
• 2006-2009: 7 solenoids, 2 tubes, 20-way connector — upper 29542971, lower 29543340; reman 29543333-RZ
• 2010-up: 7 solenoids, no tubes, 21-pin connector — 29550905 / 29550908 (redesigned, no backward interchange)
• Sonnax reman cross-ref: AL1001 / AL1002 / AL1005 / AL1006 / AL1007 (match by year/solenoid/tube)

Fits (engine/year matters — read carefully):

• Chevrolet Silverado & GMC Sierra 2500HD / 3500HD — 6.6L Duramax diesel, 2001-2019 (5-spd 01-05, 6-spd 06-19)
• Chevrolet Silverado & GMC Sierra 2500HD / 3500HD — 8.1L Vortec gas, 2001-2006
• Chevrolet Kodiak / GMC TopKick C4500 / C5500 — 6.6L Duramax & 8.1L gas, 2003-2009 (verify vs Allison 2000-series)
• Fitment is generation-specific — confirm solenoid count, tube count and connector on your unit before ordering

Applications are listed below — message us your VIN or transmission tag and we confirm fitment before you pay.

Before you order: confirm your transmission code and casting/part numbers. Not sure? Message us through eBay with your VIN or transmission tag and we will confirm fitment the same business day.

Rebuilder shops — ask about volume pricing. We stock transmission hard parts by family and can hold inventory for scheduled builds.