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Details
| Specification | Value |
|---|---|
| Brand | SAMKO |
| MPN | c21938 |
| Category | Brake Cylinder |
| Thread Size | 10 X 1 |
| Brake System | TRW |
| Distance of mounting bores [mm] | 31 mm |
| Piston Diameter [mm] | 19.05 mm |
OE/OEM numbers (2)
Search by this OE number to find compatible parts
- HONDA—43300SB2003
- HONDA—43300SB2004HS
Where this part fits
Original-fit position for OE 43300SB2003. The red ring marks where this part installs on the vehicle.
About this product
Sourced from SAMKO, this brake cylinder (C21938) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Thread Size: 10 X 1, Material: Steel, Brake System: TRW, Distance of mounting bores [mm]: 31 mm, Piston Diameter [mm]: Synthetic, 05 mm — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit HONDA models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 04-0210, 0986475708, 0986AB8145, 101-210 and 33 more. Matching these numbers confirms a like-for-like replacement with no loss of function. SAMKO is a recognised supplier of automotive braking components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Suitable cars
Equivalent products (36)
Show all 36 OE numbers
Brake Cylinder SAMKO C21938 — compatible car models
| Car models | HONDA: CIVIC III Hatchback (AL, AJ, AG, AH), CIVIC III Saloon (AM, AK, AU), CIVIC III Shuttle (AN, AR), CIVIC I Saloon (SF), CIVIC IV Hatchback (EC, ED, EE, EF), CIVIC IV Saloon (ED, EF), CIVIC V Hatchback (EG, EH), CIVIC VI Fastback (MA, MB), CIVIC VI Hatchback (EJ, EK), CIVIC VI Saloon (EJ, EK, SO) (+4 more) |
|---|---|
| Engines | 1.2 (AL); 1.2 (AM); 1.3 (AN2); 1300 L; 1.3 16V Cat (EC8); 1.2; 1.3 16V (EG3); 1.5 i Vtec-E (MA9); 1.5; 1.6 (EK1, EJ6); 1.3 (EG7); 1.4 GL; 1.6 ESi (EH6); 1.5 (DA4) |
| Year of manufacture | 1979-2001 |
| Manufacturer article number (MPN) | C21938 |
| OE part numbers | 43300SB2003, 43300SB2004HS |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
SAMKO c21938 Brake Cylinder. Brake System: TRW. Distance of mounting bores [mm]: 31 mm. Material: 1. Piston Diameter [mm]: 19,05 mm. Thread Size: 10 X 1
- 1x Brake Cylinder
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Brake Cylinder compatible with my car?
This Brake Cylinder fits HONDA vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this SAMKO Brake Cylinder have?
This SAMKO Brake Cylinder has the following specifications: Thread Size: 10 X 1; Material: 1; Brake System: TRW; Distance of mounting bores [mm]: 31 mm; Piston Diameter [mm]: 19,05 mm. Check the full specifications table above for complete details.
What OE part numbers does this Brake Cylinder replace?
This Brake Cylinder replaces OE part numbers: 43300SB2003, 43300SB2004HS. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Brake Cylinder cost?
This SAMKO Brake Cylinder is available for £2.99. Brake Cylinder prices vary depending on brand, specifications, and vehicle compatibility. SAMKO parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Brake Cylinder?
Regular inspection of your Brake Cylinder is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Brake Cylinder?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Brake Cylinder fitted by a professional mechanic.
Can I use this part as a replacement for OE 43300SB2003?
Yes, this SAMKO Brake Cylinder is a direct replacement for OE part number 43300SB2003. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
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