Drivetrain› 4x4 Driveline Components

USA Standard (Yukon)

USA Standard Transfer Case NP261XHD NP263XHD Rear Case Half NP261XHD NP263XHD T-CASE REAR CASE H

$301.89

SKU: U018 ZTNP25900AFT

In Stock
In Stock
Ships by Jun 18
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

NP261XHD & NP263XHD T-CASE REAR CASE HALF. This rear case half is designed to replace the original on NP261XHD and NP263XHD transfer cases, commonly found in 2001-2007 GM 2500HD and 3500HD series trucks with 6.6L Duramax diesel or 8.1L big block V8 engines and Allison 1000 automatic transmissions. It addresses common issues like "pump rub" that can lead to transfer case failure.

Fitment

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Available on iOS & Android

Specifications

BrandUSA Standard (Yukon)
Part NumberU018 ZTNP25900AFT

Videos

Mechanics Minute: Transfer Case Pump Upgrade Install

Mechanics Minute: Transfer Case Pump Upgrade Install
2004 GMC 2500HD Transfer Case Repair & Upgrade

2004 GMC 2500HD Transfer Case Repair & Upgrade
Common GM Truck and SUV Transfer Case Problems

Common GM Truck and SUV Transfer Case Problems
Addressing the GM Transfer Case Pump Rub Issue

Addressing the GM Transfer Case Pump Rub Issue
My Duramax Transfer Case Is Junk! Every Truck Owner Needs To Check This Now

My Duramax Transfer Case Is Junk! Every Truck Owner Needs To Check This Now
Easy installation trick for installing a transfer case into a Chevy/GMC truck/SUV

Easy installation trick for installing a transfer case into a Chevy/GMC truck/SUV
Chevy and GMC Transfer Case Problem

Chevy and GMC Transfer Case Problem
NP263XHD disassembly

NP263XHD disassembly

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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