Product Overview

The engine timing chain, OEM number LR139320, is the secondary chain that keeps the engine's camshafts synchronized with the crankshaft, ensuring valves open and close at the correct moment in the engine's cycle. It runs under constant tension and load inside the engine, so its links and pins wear with mileage, which makes it a key replacement item in the engine timing category.

A stretched or worn timing chain can throw off valve timing and cause rough running or serious engine damage, so a precisely made replacement matters. GSK Auto manufactures this timing chain to OEM specification at our Ningbo, China facility, with every unit tested before packing. We supply at wholesale volume with low MOQ and support private label packaging, with our team available to confirm the OEM number match before shipping.

Replacement OEM Numbers

Cross-Reference OEM Number

LR073745, LR132675

What Is an Engine Timing Chain?

Function: The timing chain links the crankshaft to the camshaft or camshafts, keeping valve operation precisely synchronized with piston movement throughout the engine's combustion cycle.

Working Principle: The chain runs over sprockets on the crankshaft and camshaft, transferring rotation from the crankshaft to open and close the valves at exactly the right point in each cylinder's cycle. A tensioner keeps the chain taut, compensating for wear and preventing it from skipping teeth on the sprockets.

Importance: Correct valve timing is essential to engine performance, efficiency, and reliability. A stretched or failing timing chain can cause misfires, poor performance, or, in an interference engine, serious internal damage if the chain skips or breaks.

Common Failures & Signs: Rattling or ticking noise from the front of the engine, especially on startup. Check engine light with camshaft or crankshaft timing correlation codes. Rough idle or misfiring. Loss of power or poor acceleration. Engine failing to start due to incorrect valve timing.

Key Features

OEM-standard fitment - matches factory pitch, length, and link design for the OEM LR139320 application.

Wear-resistant construction - built to handle sustained tension and load without stretching.

Precision manufacturing - built to tight tolerance for accurate valve timing.

Direct replacement - installs in place of the original timing chain, matched by OEM number.

Tested before shipment - every unit checked before packing.

Benefits

Importers - covers timing chain demand from a single sourcing partner.

Wholesalers - a key replacement item in the engine timing category.

Repair Shops and Engine Rebuilders - tested units reduce comeback risk on a timing service.

Distributors - private label packaging available for building a branded catalog.

Packaging & Shipping

Standard export cartons. Customized packaging available for distributor branding. OEM-style and private label printing on request. Container loading handled directly, with mixed-SKU consolidation for smaller orders. Worldwide shipping to Europe, North America, South America, the Middle East, Africa, and Southeast Asia.

Why Choose GSK Auto

GSK Auto manufactures factory-direct, keeping pricing tied to production cost. This timing chain is built to OEM specification and tested before packing. We support low MOQ, private label packaging, and worldwide shipping, with our technical team available to confirm the OEM number match before you order.

Call to Action

Sourcing engine timing chains by OEM number? Contact GSK Auto for a wholesale quote, catalog, or OEM/private label cooperation.