Original BEHR Engine Radiator with Integrated Oil Cooler - Mercedes-Benz W111 / W108 / W109 (280 SE 3.5 V8)

This is a genuine BEHR Downflow Engine Radiator with an Integrated Transmission Oil Cooler, originally equipped on the high-performance, V8-powered (M116 engine) 3.5 models and automatic transmission variants of the classic Mercedes-Benz W111, W108, and W109 chassis. This vintage, heavy-duty factory assembly features a robust copper/brass core and is stamped with the original part number 108 501 05 01. It includes the primary cooling core along with the specialized, side-mounted auxiliary oil heat exchanger tank.

Key Specifications

• Product Type: Original Equipment (OE) Heavy-Duty Downflow Radiator

• Manufacturer: BEHR (Made in Germany)

• OE Part Number Reference: 108 501 05 01 (A1085010501)

• Secondary Part Number: 05861000

• Construction Material: High-Efficiency Copper Core with Brass End Tanks

• Hardware Included: Integrated side-mounted auxiliary transmission fluid (ATF) oil heat exchanger loop and primary filler neck

Key Features

• Integrated Dual-Zone Cooling: Built with an attached secondary cooling column specifically engineered to circulate and drop temperatures for automatic transmission fluids or engine oil loops during high-load V8 cruising.

• Period-Correct 3-Row Core: Constructed with heavy-gauge classic copper fins that offer exceptional thermal stability, outstanding repairability, and authentic vintage structural mass compared to modern aluminum replacements.

• Authentic Raised Factory Stamping: Retains the distinct, sharply raised factory "BEHR" logo alongside the original Mercedes-Benz part tracking stamp across the upper brass reservoir tank.

• Industrial Brass Reservoirs: Features highly durable brass top and bottom end tanks designed to endure long-term operational pressures and resist core degradation over decades of ownership.

Fitment & Applications

• 1969–1971 Mercedes-Benz W111 (280 SE 3.5 Coupé & Cabriolet)

• 1968–1972 Mercedes-Benz W108 (280SE 3.5, 280SEL 3.5, and selective automatic 6-cylinder variants)

• 1968–1973 Mercedes-Benz W109 (300SEL 3.5 V8)

• Essential for numbers-matching factory restorations or executing an authentic powertrain configuration swap.