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52.4mm Complete Cylinder Head for Lifan 125cc Horizontal Engine | 32T Cam
52.4mm Complete Cylinder Head for Lifan 125cc Horizontal Engine | 32T Cam
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Product Overview
Replacement complete cylinder head and valve assembly for compatible Lifan 125cc horizontal 4-stroke engines used in Chinese pit bikes, dirt bikes, ATVs, go-karts, and Apollo / CRF-style applications.
This cylinder head features a 52.4mm bore opening, 32-tooth cam gear, 33mm intake valve, 26mm exhaust valve, and approximately 50mm bolt-hole spacing.
Before ordering, compare the cylinder head with the original engine for cam gear tooth count, bore size, valve dimensions, mounting-hole spacing, timing-chain configuration, intake/exhaust ports, and overall head design.
Product Compatibility
| Engine / Application | Fitment |
|---|---|
| Lifan 125cc Horizontal Engine | Compatible 32T Cam Applications |
| Apollo Pit / Dirt Bike | Selected 125cc Applications |
| CRF-Style Chinese Pit Bike | Selected 125cc Applications |
| Chinese Motorcycle | Compatible Horizontal 125cc Engine |
| ATV / Quad | Compatible Horizontal 125cc Engine |
| Go Kart | Compatible Horizontal 125cc Engine |
| Dirt / Pit Bike | Compatible Horizontal 125cc Engine |
Specifications
| Specification | Details |
|---|---|
| Product Type | Complete Cylinder Head / Valve Assembly |
| Engine Platform | Lifan-Style Horizontal Engine |
| Engine Size | 125cc |
| Engine Type | 4-Stroke |
| Bore Opening | Approx. 52.4 mm / 2.06 in |
| Cam Gear | 32 Teeth |
| Intake Valve | Approx. 33 mm / 1.30 in |
| Exhaust Valve | Approx. 26 mm / 1.02 in |
| Bolt-Hole Spacing | Approx. 50 mm / 1.97 in |
| MPN / Product Reference | K075-053 |
| Applications | Pit Bike / Dirt Bike / ATV / Go Kart |
| Replacement Type | Aftermarket |
| Condition | New |
Key Features
- 32T Cam Gear: Critical fitment feature for distinguishing this head from similar 28T versions.
- 52.4mm Bore Application: Designed for compatible Lifan-style 125cc horizontal engines.
- 33mm / 26mm Valves: Uses a 33mm intake valve and 26mm exhaust valve configuration.
- Complete Head Assembly: Provides an assembled replacement cylinder head for compatible top-end repairs.
- Multi-Application Engine Fitment: Suitable for selected pit bikes, dirt bikes, ATVs, go-karts, and Chinese motorcycles using the matching engine configuration.
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Fitment FAQ
Will this part fit my specific model and year?
Fitment depends primarily on the engine configuration, not the vehicle model year.
This head is listed for compatible Lifan 125cc horizontal engines used in Apollo, CRF-style Chinese pit bikes, dirt bikes, ATVs, and go-karts.
Your original head should match the 52.4mm bore, 32T cam gear, 33mm intake valve, 26mm exhaust valve, and mounting pattern.
Do I need to match the OEM part number?
No verified OEM number is provided.
Instead, verify the most important specifications:
32T cam gear
52.4mm bore opening
33mm intake valve
26mm exhaust valve
50mm bolt-hole spacing
Matching timing-chain configuration
Matching intake and exhaust ports
What models or situations does this part not fit?
Do not assume this head fits:
Every Lifan 125cc engine
125cc engines using a 28T cam gear
Vertical engines
Engines with different valve sizes
Heads with different bolt-hole patterns
Engines using different timing-chain or camshaft configurations
Honda CRF motorcycles simply because “CRF” appears in the aftermarket application description
Engine displacement alone does not guarantee compatibility.
What should I check before ordering?
Confirm:
Horizontal 125cc engine configuration
32-tooth cam gear
52.4mm / 2.06" bore opening
33mm / 1.30" intake valve
26mm / 1.02" exhaust valve
Approx. 50mm / 1.97" bolt-hole spacing
Timing-chain configuration
Camshaft and sprocket design
Intake and exhaust port locations
Overall cylinder-head shape
Compare the replacement directly with your original cylinder head before purchase.