Timing Belt Tensioner Pulley OE 51820520 for GM / Fiat / Opel / Jeep / Alfa Romeo Multi-Brand Engine Platform

No.OEM Number: 51820520 Cross Reference: 534040410, 1340258, 4627673AA, 51824328, 55215811, 55282321, 55561330, K04627673AA, K68391789AA

Type	Timing Belt Tensioner Pulley
Product name	Heavy Duty Timing Belt Tensioner Pulley for GM / Fiat Multi-Brand Engine Platform
Brand	SUMATE
Quality assurance	24 months
Application	GM / Fiat / Opel / Jeep / Alfa Romeo / Saab / Cadillac engine systems
MOQ	Group 1
Delivery time	1–7 days
OE number	51820520
Material	High-strength steel pulley + premium C&U bearing
Place of origin	Zhejiang, China
Applicable models	GM / Fiat / Opel shared diesel engine platform (1.9L–2.2L CDTI / JTD / Multijet engines)
Type of packaging	SUMATE / Neutral / Custom packaging

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Description

Product Overview

The Timing Belt Tensioner Pulley OE 51820520 is a multi-brand engine timing component widely used across GM, Fiat, Opel, Jeep, Alfa Romeo, Saab, and Cadillac 1.9L–2.2L diesel engine platforms. It is designed to maintain stable timing belt tension, ensuring accurate synchronization between engine components and reducing the risk of belt slippage, noise, and premature wear.

This OE belongs to the GM–Fiat global diesel engine platform, which shares standardized components across multiple European passenger cars and light commercial vehicles. It is widely used in 1.9L CDTI and JTD engine systems, known for durability, fuel efficiency, and cross-brand compatibility.

Manufactured by SUMATE, this pulley is built with high-quality C&U bearings and a reinforced steel pulley body. It ensures smooth rotation, low friction, and long service life under continuous engine load conditions. Each unit is fully tested before shipment to ensure stable performance and OEM-level reliability.

Product Features

Designed for GM–Fiat 1.9L CDTI / JTD multi-brand engine platforms
Ensures stable timing belt tension for accurate engine synchronization
Premium C&U bearing for smooth and durable operation
High-strength steel pulley for long service life and wear resistance
Reduces vibration, noise, and belt wear under engine load
100% tested before shipment for quality consistency
Suitable for aftermarket distributors, wholesalers, and repair workshops

OEM Cross Reference

OEM Numbers

51820520, 534040410, 1340258, 4627673AA, 51824328, 55215811, 55282321, 55561330

FCA / GM Cross Reference

K04627673AA, K68391789AA

Technical Specifications

Outer Diameter: 65 mm
Width: 26 mm
Weight: 0.839 kg
Structure: C&U bearing + High-strength steel pulley
Application type: Engine timing belt tension system component

Compatible Vehicles

This timing belt tensioner pulley is widely used across GM–Fiat shared 1.9L diesel engine platforms. Compatibility may vary depending on engine code and production year. Please verify OE number before ordering.

Opel – Astra H, Vectra C, Zafira B, Signum (1.9 CDTI engines)
Fiat – Doblo, Bravo, Croma, Punto, Stilo (1.9 JTD engines)
Saab – 9-3, 9-3X (1.9 TiD engines)
Alfa Romeo – 147, 159, Giulietta (1.9 JTD engines)
Jeep – Cherokee, Compass, Renegade (selected 1.9 diesel engines)
Cadillac – BLS (1.9 diesel engine)

Why Choose SUMATE

Multi-brand OE platform coverage across GM–Fiat engine systems
High-precision manufacturing with strict quality control
Premium bearing technology for durability and smooth operation
Fast delivery with stable supply chain support
OEM and private label packaging available

Looking for a Reliable Supplier?

If you are searching for a trusted supplier of timing belt tensioner pulleys for GM–Fiat engine platforms, SUMATE provides consistent quality, competitive pricing, and professional export support. Contact us for bulk orders, OEM customization, or product inquiries.