1J0 422 371C Power Steering Fluid Reservoir for VOLKSWAGEN

OE 1J0 422 371C identifies an angular black power steering fluid reservoir used on Volkswagen Golf, Jetta and R32 applications. The listing also records 1J0 422 371D and 1J0 422 371B as comparison numbers for catalogue and removed-part checks.

Unlike a simple storage bottle, this reservoir participates in hydraulic return-flow management. Correct internal condition, port orientation and cap sealing help protect the steering pump from aerated or contaminated fluid.

Product Technical Specifications

Product type: Power Steering Fluid Reservoir

Primary OE reference: 1J0 422 371C

Internal item code: VM01016-004

Vehicle brand: VOLKSWAGEN

Application reference: Volkswagen Golf, Jetta and R32 hydraulic steering references; confirm chassis and engine.

Cross-reference numbers: 1J0 422 371C / 1J0 422 371D / 1J0 422 371B

A4-Platform Steering Reservoir Function

The container supplies oil to the pump and receives fluid returning from the steering rack. Its compact attached form fits the platform’s engine-bay packaging, while the cap allows level inspection and protects the circuit from dust and moisture.

Golf, Jetta and R32 Fitment Evidence

Catalogues list 1J0 422 371C for Volkswagen Golf and Jetta Mk4 applications and selected R32 vehicles, with related Audi TT references also appearing. Confirm the exact model, production period, engine and original OE marking before purchase.

Port Mapping Before Installation

Compare the feed and return connection diameters, their angle relative to the cap and the spacing of the mounting features. Similar VAG tanks can share a colour and silhouette yet differ where the hoses or bracket meet the housing.

Filter, Fluid and System Diagnosis

A noisy pump or slow bleeding can result from restricted internal screening, low fluid, incorrect oil or air entering through an aged hose. Inspect the entire hydraulic circuit and use only the fluid specification approved for the vehicle.

Wholesale Order Identification

Use SKU VM01016-004 together with the complete C-suffix OE reference when requesting stock. A procurement brief should include the vehicle mix, annual quantity, cap requirement, destination and barcode or carton-marking instructions.

Frequently Asked Questions

Which Volkswagen models use 1J0 422 371C?

Golf, Jetta and R32 applications appear in public catalogues, subject to engine, chassis and production-date confirmation.

Can 1J0 422 371B or 1J0 422 371D replace the C suffix?

They are useful cross-reference numbers, but interchangeability must be confirmed through a VIN catalogue and a direct comparison of ports and mounts.

Does the reservoir normally include a cap?

This product image shows the cap fitted. Buyers should still state the cap requirement in the quotation so the supplied configuration is documented.

What can cause power steering pump cavitation?

Low oil, suction-side air leaks, restricted flow, contamination and the wrong fluid can cause bubbles and pump noise.

What information speeds up sample approval?

Provide 1J0 422 371C, SKU VM01016-004, VIN or chassis data, hose-port photographs and the intended order volume.

Request an 1J0 422 371C Reservoir Quote

Send OE 1J0 422 371C, SKU VM01016-004, required quantity, destination and removed-part evidence to AutoParts for a fitment review and wholesale proposal.

Fitment notice: OE and vehicle references support identification, but final compatibility requires VIN-, engine- and chassis-specific catalogue checks plus direct comparison with the removed reservoir.

Inspection focus: Match the angular black housing, green cap, bracket points, port sizes and direction.

Supply note: Suitable for A4-platform steering service programs and mixed VAG wholesale orders.