Lougfeu Transmission Filter Kit for Allison 1000/2000 Series — Silverado/Sierra OEM Replacement

Overview

The Lougfeu Transmission Filter Kit is a dual-filter solution designed for Allison 1000/2000 transmissions used in light‑duty GM trucks. It pairs an internal shallow filter with an external spin‑on filter to help keep hydraulic passages clean and maintain steady fluid flow, supporting smoother shifting and reduced wear risks over time.

Precision compatibility

Engineered for 2001–2010 5‑ and 6‑speed Allison 1000 transmissions that use shallow pans. It is a suitable OEM replacement for Chevrolet Silverado and GMC Sierra 2500HD trucks equipped with the 6.6L Duramax diesel. Important note: this kit does not fit deep‑sump pans—please verify your pan type before purchasing.

Dual filtration technology

The kit features internal shallow filtration (part 29537965) and an external spin‑on filtration (part 29539579). Together, they help reduce particulates and debris, potentially extending transmission life, improving fluid circulation, and helping to minimize wear on gears, solenoids, and the torque converter. Always double‑check pan type to confirm compatibility.

• Internal shallow filter with a corrosion‑resistant steel frame and high‑density cellulose media.
• External spin‑on filter delivering high‑efficiency filtration against debris and abrasive particles.

Addressing common gearbox issues

Clogged oil passages can contribute to rough shifting, slipping, and unusual noises. This kit aims to support consistent hydraulic pressure for smoother gear transitions and may help reduce torque converter shudder in stop‑and‑go driving.

Premium construction

The internal filter uses a robust steel frame, while the external filter adds additional filtration power. The included gasket is 30% thicker for a reliable seal, making the kit a straightforward OEM replacement option for compatible Chevy Silverado and GMC Sierra applications.

Complete kit, easy DIY

Direct OEM replacement with no wiring or plumbing modifications required. Fits vehicles with Allison transmissions and is intended for owners seeking a practical, no‑nonsense upgrade between service intervals.

What you get

• 29537965 shallow pan filter
• 29539579 spin‑on filter
• Gasket, 30% thicker, for a solid seal

Installation tips

Before install, confirm your pan type (shallow vs. deep). Depressurize the system, drain the fluid, and clean the pan area. Use the gasket and torque to spec for a proper seal.