SUPPORT MOTEUR

The GAZ 3302-1001020 is the Front Engine Mount Cushion for the GAZ-3302 GAZelle light commercial vehicle family — a vibration-isolating structural component that secures the front of the engine to the vehicle frame while absorbing powertrain torque reaction and preventing engine vibration from transmitting into the cabin. The "1001020" suffix in the GAZ part numbering convention identifies this as the front engine mount cushion position; the "3302" prefix identifies the GAZelle commercial vehicle family. Construction: a steel inner sleeve bonded to an outer steel bracket via a vulcanised rubber element, providing multi-axis compliance and vibration damping for the longitudinally-mounted ZMZ-series or UMZ-series engine.

The GAZ-3302 GAZelle is a body-on-frame light commercial vehicle (1.5-ton payload class) with longitudinally-mounted front engine, manual transmission, and rear-wheel-drive (or all-wheel-drive on 4x4 variants 33023 / 33027 / 330237). Engine options across GAZelle production variants include: ZMZ-402 (carburettor petrol, 100 hp, original 1994-2003 production), ZMZ-4063 (110 hp, mid-production), GAZ-560 / 5601 / 5602 STAYER (turbo-diesel, license-built Steyr design, 2000-2010), UMZ-4216 (Euro-3 fuel-injected petrol, GAZelle Business 2010+), Cummins ISF 2.8 (turbo-diesel, GAZelle NEXT 2013+), and EvoTech 2.7 (UMZ-A274). The 3302-1001020 front engine mount fits the rubber-bonded mount position used across these engine configurations on the original GAZ-3302 frame architecture.

An engine mount on a body-on-frame light commercial vehicle performs four integrated functions: (1) static support — carries a fraction of the powertrain weight (typically 80–200 kg per mount across 3-4 mount positions on GAZelle longitudinal engine layout); (2) vibration isolation — the rubber element acts as a low-pass mechanical filter, attenuating high-frequency engine firing-order vibration (25–200 Hz) before it transmits to the chassis frame and cabin floor; (3) torque reaction control — resists powertrain rolling movement under acceleration while allowing controlled compliance for shock absorption; (4) commercial-load impact protection — the mount network is designed to absorb shock loads from heavy cargo loading transients and off-road usage that GAZelle vehicles routinely encounter.

The longitudinal-engine GAZelle layout typically uses a 3-mount configuration: two front mounts (one on each side of the engine block, supporting the front of the powertrain) and one rear mount (typically located at the gearbox tail, supporting the rear of the gearbox). The 3302-1001020 fits the front position. Each mount has different bracket geometry and load rating — mounts from different positions are NOT interchangeable.

Engine mounts degrade through rubber oxidation from sustained engine bay heat, oil contamination from valve cover / rocker cover / front cover gasket leaks (oil softens rubber and accelerates degradation by 5-10x), accumulated fatigue from torque loading over millions of engine cycles, extreme cold exposure causing rubber embrittlement (significant factor for commercial fleet operation in cold-climate markets), and commercial-load impact damage from heavy-cargo transient shocks or construction-site / unpaved-road usage. A collapsed mount allows excessive powertrain movement that loads adjacent mounts disproportionately — sequential mount failures within months are common on GAZelle commercial fleets where one mount has been operating in a failed state.

Engine mounts as rubber-bonded vibration isolators are typically classified under HS 4016.99 (other articles of vulcanised rubber other than hard rubber). Some jurisdictions classify under HS 8708.99 (other parts of motor vehicles) for the steel-bracket assembly. Confirm exact 10-digit subheading and applicable duty rates with your customs broker. Commercial invoice description: front engine mount cushion for light commercial vehicle, vulcanised rubber-bonded element with steel bracket assembly.

Does NOT fit: GAZelle NEXT (2013+) — new generation with different cab, frame architecture only partially shared, and different engine mount references; GAZ Valdai — heavier-duty variant on longer wheelbase with different mount specifications; GAZ Volga sedans (24, 31029, 3110, 31105) — passenger-car platform with different mount architecture despite shared engine families; GAZ-66 / GAZ-53 / GAZ-3307 — older heavy-truck platforms with completely different mount references (e.g., 66-1001020 for those vehicles); UAZ vehicles (Bukhanka, Hunter, Patriot, Profi) — despite using the same 1001020 suffix in their mount nomenclature, UAZ uses a different prefix (3160-1001020) and different bracket geometry. Always verify by reading the OEM number stamped on the existing mount before ordering — the 3302-prefix is specific to the GAZelle 3302 chassis family.

Difficulty: Moderate. Estimated time: 60–90 minutes per side. Engine support mandatory before mount removal — allowing the engine to hang on remaining mounts loads them beyond design.

1. 1
   Identify the failed mount and verify the OEM number before disassembly. Photograph the mount in situ and surrounding cable / hose routing for reference during reassembly. Inspect both front mounts during this service operation — sequential failures common on GAZelle commercial fleets.
2. 2
   Park on level ground with engine cool, cargo unloaded if possible (reduces frame deflection during service). Open bonnet. Disconnect negative battery terminal.
3. 3
   Support the engine externally: (a) hydraulic floor jack with wide wooden block under the oil sump (typical for GAZelle ZMZ / UMZ engines); (b) engine support bar across the engine bay; (c) chain hoist hooked to engine lifting points. Never allow engine to hang on remaining mounts while one is removed.
4. 4
   Remove obstructing components — depending on which front mount is being serviced: air filter housing, intake duct, heat shield, exhaust manifold heat shield, brake fluid reservoir bracket, and any wiring harness routing through the mount area.
5. 5
   Remove the mount-to-frame bolts first, then the mount-to-engine bracket bolts. Apply penetrating oil to seized fasteners + allow soak time. Use breaker bar for stubborn frame bolts (subframe / frame bolts on GAZelle typically torqued 80-120 Nm, may be heavily corroded due to commercial usage exposure).
6. 6
   Raise the engine slightly with the support jack to relieve load on the mount + create extraction clearance. 10-30 mm lift typical. Watch for hose / cable / pipe interference at the lift — coolant hoses, fuel lines, electrical harness may need temporary repositioning.
7. 7
   Extract the old mount. Inspect for confirming failure mode (rubber crack location, oil saturation depth, bracket deformation). Address oil leak sources before installing the new mount — ZMZ / UMZ valve cover gasket failure is the most common mount oil-saturation cause.
8. 8
   Compare new mount to old — verify bracket geometry matches, bolt hole pattern matches, overall dimensions match, rubber element orientation correct. Confirm OEM 3302-1001020.
9. 9
   Position the new mount in place + start ALL bolts by hand BEFORE torquing — allows alignment correction + prevents thread cross-threading. Lower engine slowly using support jack to its natural resting position.
10. 10
    Torque all fasteners with engine at natural resting position, NOT under jack load. Torquing under artificial load pre-stresses rubber and significantly reduces service life. Torque OEM specification: typically 60-100 Nm for mount-to-frame bolts; 40-60 Nm for mount-to-engine bracket bolts. Consult GAZ service manual for exact values.
11. 11
    Refit obstructing components removed for access. Verify all hoses, cables, pipes routed correctly without contact with the new mount. Reconnect battery.
12. 12
    Road test the vehicle. Verify: clunk during gear engagement eliminated; idle vibration through steering / floor / gear lever reduced; no new abnormal noise / vibration; engine remains in correct position under acceleration. For commercial GAZelle fleet operators: schedule re-inspection after 1,000-2,000 km of operation to verify mount has settled correctly + retorque all fasteners if needed.