1J0145803N Intercooler Assembly for VOLKSWAGEN Golf Mk4

1J0145803N Intercooler Assembly for VOLKSWAGEN Golf Mk4

OE reference 1J0145803N points to an intercooler / charge-air cooler associated with VOLKSWAGEN Golf Mk4. The internal item code AD01011-029 keeps this configuration separate from similar cores with different tanks or hose positions.

This component sits in the turbo air path and transfers heat through its aluminum core before the air reaches the engine.

Product Technical Specifications

Component: Intercooler assembly / charge-air cooler

Primary OE reference: 1J0145803N

Additional references: 1J0145803AB; 96679

Brand application: VOLKSWAGEN

Model reference: Golf Mk4

Internal SKU: AD01011-029

Supply type: Aftermarket wholesale replacement

Turbo Air Temperature Control

Oil mist around a joint, hissing under acceleration, low boost or reduced power can indicate a leaking intercooler or hose connection.

The replacement should preserve the original airflow path and charge-pipe geometry. Correct connector diameter and tank orientation are as important as overall core dimensions.

Verification Before Purchase

Compare 1J0145803N with every number printed on the removed intercooler.

Confirm the vehicle model, production period, engine and turbo configuration.

Measure core height, width and thickness as well as the overall assembly.

Check inlet and outlet diameter, position, angle and retaining method.

Match mounting tabs, sensor provisions, hose couplers and surrounding clearances.

Installation and System Checks

Inspect the complete boost circuit before fitting the new unit. Clean debris from nearby airflow passages, replace damaged seals or clamps, and follow the vehicle maker’s tightening and pressure-test procedure. A final road or workshop test should confirm stable boost with no abnormal air noise.

Wholesale Supply for VOLKSWAGEN Golf Mk4

For export orders, available checks can cover core condition, tank alignment, connector dimensions, mounting points and protective carton packing.

For a quotation, send OE 1J0145803N, SKU AD01011-029, order volume and destination country. Photos of the original unit are recommended whenever the model, engine or connection layout is not fully documented.

Frequently Asked Questions

Is 1J0145803N guaranteed to fit every VOLKSWAGEN Golf Mk4?

No. Vehicle production changes and engine options can use different charge-air coolers. Confirm the OE label and physical layout before purchase.

What should be compared besides the OE number?

Compare the core dimensions, tank shape, inlet and outlet positions, connector diameters, brackets and any sensor or valve provision.

Can a damaged intercooler reduce engine power?

Yes. A leak or restriction may reduce charge pressure and cooling efficiency. The hoses, clamps and turbo plumbing should be tested at the same time.

Can AutoParts support sample or bulk orders?

Sample and wholesale enquiries are welcome. Supply the OE number, quantity, destination and packaging requirements for evaluation.

Are private-label cartons available?

Neutral or customized packaging can be discussed according to order quantity, artwork, labeling details and production schedule.

Request a Quote

Contact AutoParts for a 1J0145803N VOLKSWAGEN Golf Mk4 intercooler quotation, product photographs or export-packing discussion.

Fitment notice: OE and model references support identification but do not replace VIN-based or original-part verification.

Product: Intercooler Assembly / Charge Air Cooler

Function: Cools compressed turbo air before it reaches the intake manifold.

Supply: Wholesale aftermarket replacement for global cooling-system buyers.

Fitment check: Verify OE number, core size, hose connections and mounting points before ordering.