Turbo 350 Transmission Seal Kit BIGLKNM Gasket

Description

Product Overview

The BIGLKNM Turbo 350 transmission seal kit is engineered for a perfect fit on THM‑250, 250C, 350, 350C and 375B transmissions across all years. Crafted from high‑temperature fluoro rubber, the O‑ring resists heat, corrosion and fluid degradation, while the oil pan gasket is molded from durable material that mirrors OEM specifications. Package dimensions are 14.75 x 14.3 x 1.7 inches, weighing just 1.15 pounds, making storage and handling effortless.

Usage

Designed for both professional mechanics and DIY enthusiasts, this kit restores sealing integrity during transmission rebuilds, oil pan replacements or leak repairs. It performs reliably in high‑stress environments such as heavy‑duty trucks, performance vehicles and daily commuters.

Why Choose Us

BIGLKNM combines precision engineering with rigorous quality control to deliver components that match or exceed OEM standards. Each O‑ring undergoes temperature cycling tests, and the gasket is inspected for dimensional accuracy, ensuring a leak‑free fit the first time. Our kits are backed by a satisfaction guarantee and come with detailed installation instructions.

Key Features

• Exact OEM fit for THM‑250, 250C, 350, 350C & 375B models
• Fluoro rubber O‑ring offers superior heat and chemical resistance
• Corrosion‑resistant oil pan gasket prevents future leaks
• Complete kit includes seal, gasket, O‑ring and installation guide
• Compact packaging for easy storage and quick access

FAQ

Will this kit fit a 1998 Chevrolet Silverado with a THM‑250 transmission?

Yes, the kit is compatible with all THM‑250, 250C, 350, 350C and 375B transmissions regardless of vehicle make, model year or application.

Do I need additional tools to install the seal kit?

Standard hand tools such as a torque wrench, seal puller and gasket scraper are sufficient. No specialized equipment is required.

Can I use this kit for a transmission rebuild or just a leak repair?

The kit is designed for both scenarios. It provides a reliable seal for complete rebuilds and effectively stops leaks in existing installations.

What is the warranty coverage for this product?

BIGLKNM offers a one‑year limited warranty covering manufacturing defects. Contact our support team with your purchase details for assistance.

Is the O‑ring compatible with synthetic transmission fluids?

Absolutely. The fluoro rubber material is formulated to resist degradation from both conventional and synthetic transmission fluids.