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Genuine Perkins 503/302 Cylinder Head Bolt. Factory quality assurance, serial-number fitment verification, and fast export dispatch.
Verified Prior to Quotation. Fitment and configuration are cross-checked against your equipment serial number.
Technical Overview
Genuine high-tensile cylinder head bolt 503/302. Provides uniform clamping force across the cylinder head gasket when torqued according to the factory angle-tightening sequence.
Supply Assurance
We verify fitment by engine nameplate and serial number, with pre-shipment photos of original packaging.
Direct dispatch from our Chongqing hub for industrial fleets, power plants, and service centers.
Unit price, completeness, export crating, and lead time are confirmed before invoicing.
Technical Data
Reference parameters for engineering selection; exact arrangement details are confirmed prior to shipment. Manufacturer names and part numbers are used for identification reference only.
| Part Number | 503/302 |
|---|---|
| Cross-Reference / Alternate Numbers | 503302 |
| Brand | Perkins |
| Category | Cylinder Block & Head |
| Part Name | Perkins Cylinder Head Bolt |
| Dimensions | M16 × 195 mm (Thread × Length) |
| Unit Weight | 0.42 kg |
| Material / Construction | Quenched and tempered chrome-molybdenum alloy steel (Property Class 12.9) |
| Fastener Type | Torque-to-Yield (TTY) Flanged Cylinder Head Bolt |
| Surface Finish | Zinc-Phosphate Anti-Corrosion Coating |
| Compatible Models | Perkins 1004.40, Perkins 1004.42, Perkins 1006.60, Perkins 1103A-33, Perkins 1103C-33, Perkins 1104A-44, Perkins 1104C-44, Perkins 1104C-44T |
| Application / Fitment | For Perkins 4006 4008 4012 4016 engine |
Engineering Advantage
Fitment is verified against your engine model and serial number (S/N) via CAT SIS and Perkins SPI part number lookup before quotation.
Direct supersession and cross-reference lookup: send your old or alternate part number and we will confirm the latest replacement.
100% genuine original factory components in original packaging, verified by pre-shipment warehouse photos and videos.
Part numbers, laser markings, original packaging, and completeness are inspected at our warehouse prior to dispatch.
Reliable stock availability in Chongqing with fixed lead times and export-grade protective packaging.
Fitment & Cross-Reference
Alternate & Cross-Reference Part Numbers
Compatible Engines & Equipment Models
Logistics & Packaging
Quantity, export packaging, gross weight, and dispatch lead time are confirmed in your formal quotation.
Before You Order
Provide your engine model, engine serial number (S/N), and part number. Before issuing a formal quotation, our engineers cross-check fitment against Caterpillar SIS, Perkins SPI, or FG Wilson part number cross-reference systems.
Yes. MSDD Engine exclusively supplies 100% genuine original parts in factory-sealed packaging. Before shipment, we provide warehouse photos of original packaging, part markings, and security labels.
Request a Quotation
Check Price & Fitment — share your requirements below and our engineers will verify fitment and stock availability.
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Tell us what you need — our team responds within 1 business day.
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