Volvo A30F and A40F: Articulated Hauler Parts That Keep Sites Moving
The Volvo A30F and A40F are two of the world’s most recognized articulated haulers — built for high-production earthmoving on construction sites, quarries, and mining operations. The A30F carries 28 tonnes payload, while the A40F moves up to 39 tonnes per cycle. Both machines are powered by high-torque Volvo engines with all-wheel drive, hydro-mechanical transmissions, and active suspension systems. Downtime on these machines is extremely costly given their central role in any earthmoving operation. → A30F parts and A40F parts are fully stocked at VMP Spares.
A30F vs A40F: Key Specifications Comparison
While the A30F and A40F share many components, there are important differences in engine, transmission, and body capacity that affect parts ordering. Always confirm your model before ordering major components like engines, transmissions, and axle assemblies:
| Specification | A30F | A40F |
|---|---|---|
| Payload capacity | 28 tonnes | 39 tonnes |
| Body volume (SAE) | 17.5 m³ | 24 m³ |
| Engine | D13H – 294 kW | D16H – 395 kW |
| Transmission | Volvo PowerTronic, 8F/4R | Volvo PowerTronic, 8F/4R |
| Operating weight | ~32,500 kg | ~44,500 kg |
| Top speed (loaded) | 50 km/h | 48 km/h |
| Axle configuration | 6×6 all-wheel drive | 6×6 all-wheel drive |
Transmission & Driveline Parts
The PowerTronic transmission is the heart of both the A30F and A40F — a fully automatic, powershift unit with torque converter. This transmission is robust but requires clean oil and correct servicing intervals to prevent premature wear of clutch packs and solenoid valves. High-cycle operations (quarries, dam construction) put exceptional stress on these components. → Browse transmission parts and gearbox components:
| Transmission Component | A30F Part Number | A40F Part Number |
|---|---|---|
| Transmission oil filter | VOE11110712 | VOE11110712 |
| Torque converter seal kit | VOE11704358 | VOE11704446 |
| Solenoid valve set | VOE11042965 | VOE11042966 |
| Transmission oil cooler | VOE15107218 | VOE15107322 |
| Driveshaft (front-rear) | VOE15108840 | VOE15108922 |
| Articulation bearing set | VOE15117520 | VOE15117622 |
A30F or A40F transmission part needed? Send us your serial number and we’ll quote within 2 hours with availability confirmation.
Axle & Suspension System Parts
Both the A30F and A40F use Volvo’s Active Suspension (STICS) which uses nitrogen-oil accumulators and hydraulic cylinders to absorb payload shocks, enabling full-speed loaded travel over rough terrain. Accumulator pre-charge pressure and cylinder seals are the most common wear items. → Browse suspension & axle parts:
| Suspension/Axle Part | Notes | Service Interval |
|---|---|---|
| Front axle oil (per axle) | API GL-5 75W-90 mineral | Every 2,000h |
| Rear axle oil (per axle) | Same spec as front | Every 2,000h |
| Suspension cylinder seal kit | Bore + rod seals, per side | At oil leak or 4,000h |
| Nitrogen accumulator | Pre-charge 45–60 bar (check spec) | Test every 1,000h |
| Wheel hub seal kit | Per hub, outer & inner | At grease interval or leak |
| Hub reduction gear oil | SAE 90 API GL-5 | Every 2,000h |
| Steering cylinder seal kit | Full bore & rod kit | At leak or 4,000h |
Engine Parts: D13H and D16H
The A30F uses the D13H inline-6 engine (294 kW) while the A40F runs the larger D16H (395 kW). Both are high-pressure common rail engines requiring premium-quality filtration. The D16H in particular has strict fuel quality requirements — contaminated fuel is the leading cause of injector and high-pressure pump failures. → Browse hauler engine parts and fuel system components:
| Engine Service Part | A30F (D13H) | A40F (D16H) |
|---|---|---|
| Engine oil filter | VOE20998367 | VOE20998447 |
| Fuel pre-filter | VOE20514654 | VOE20514720 |
| Fuel main filter | VOE21834740 | VOE21834820 |
| Air filter outer | VOE11110447 | VOE11110512 |
| Air filter inner (safety) | VOE11110448 | VOE11110513 |
| Coolant thermostat | VOE22276937 | VOE22276938 |
| Radiator core | VOE15056082 | VOE15056155 |
Braking System & Tyres
The A30F and A40F use wet disc brakes — immersed in oil, spring-applied, hydraulic-release. These brakes are extremely durable but require correct brake oil specification and regular inspection of the brake discs and pistons. Tyre selection significantly impacts fuel consumption and tyre life — loaded hauler tyres see enormous stress on steep haul roads. → Browse brake system parts:
| Brake System Component | Notes |
|---|---|
| Wet brake disc set (per axle) | Steel discs + friction plates, requires matched set |
| Brake oil filter | Change every 2,000h or when oil contaminated |
| Brake accumulator | Nitrogen pre-charge 80 bar — test annually |
| Retarder oil cooler | Integral with transmission cooler on most variants |
| Brake piston seal kit | Per axle, caliper seals + o-rings |
| Parking brake actuator | Spring-applied fail-safe mechanism |
Electrical System & STICS Controls
The A30F/A40F use Volvo’s Vehicle Control Unit (VCU) and Body Control Unit (BCU) in a CAN network. The STICS active suspension is electronically controlled. Electrical faults are common in high-vibration environments — inspect harness routing points, connectors near the articulation joint, and body sensor mounts regularly. → Hauler electrical system parts:
| Electrical Component | Notes |
|---|---|
| Vehicle Control Unit (VCU) | Requires Volvo VCADS programming after replacement |
| Body Control Unit (BCU) | Controls dump body functions and tipping |
| STICS suspension sensor | Accelerometer type, front and rear positions |
| Main wiring harness | Split front/rear at articulation joint |
| Alternator 150A | 24V, high-output for all accessories |
| Batteries (4× 12V) | Connected in 24V series-parallel configuration |
Common A30F/A40F Failure Patterns
| Symptom | Likely Cause | Recommended Action |
|---|---|---|
| Transmission shift shock/hunting | Solenoid valve wear or oil contamination | Change oil + filter; test solenoid coils |
| Suspension too soft / oil leak | Suspension cylinder seal failure | Replace cylinder seal kit; check accumulator pressure |
| Body fails to tip (or slow) | Tipping cylinder seal wear or body control valve | Inspect cylinder; test hydraulic pressure at tip valve |
| Engine derate on long haul | DPF/SCR system fault (Stage IV/V models) | Regeneration needed; check DEF quality and level |
| Brake warning light active | Low brake accumulator pressure or disc wear | Check accumulator charge; inspect disc thickness |
| Excessive tyre wear (inner) | Incorrect toe alignment or overloading | Measure toe; verify payload management system settings |
→ Related: Hydraulic PM checklist | Pre-season inspection guide | Complete filter replacement guide
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