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Details
| Specification | Value |
|---|---|
| Brand | CASTROL |
| MPN | 15f139 |
| Capacity [litre] | 1 l |
| Container Type | FL |
| Specification | JASO 1A |
| Manufacturer Approval | GM DEXRON® -IIIH |
| Manufacturer Approval | Recommended for Use |
| Manufacturer Approval | Ford MERCON® |
| Oil manufacturer recommendation | Special ATF, Nissan |
| Oil manufacturer recommendation | DexronIID+Allison C4 |
| Oil manufacturer recommendation | DexronIII+Allison C4 |
| Oil manufacturer recommendation | Dexron III + Mercon |
| Oil manufacturer recommendation | ATF, M-V (Type M5) |
| Oil manufacturer recommendation | ATF, Toyota Type T |
| Oil manufacturer recommendation | Toyota Type T-II |
| Oil manufacturer recommendation | Toyota Type T-IV |
| Oil manufacturer recommendation | Dia Queen ATF J3 |
| Oil manufacturer recommendation | Dia Queen ATF-PA |
| Oil manufacturer recommendation | Fiat 9.55550-AV1 |
| Oil manufacturer recommendation | Honda ATF DW-1 |
| Oil manufacturer recommendation | Dexron III (H) |
| Oil manufacturer recommendation | Nissan Matic D |
| Oil manufacturer recommendation | Nissan Matic J |
| Oil manufacturer recommendation | Nissan Matic S |
| Oil manufacturer recommendation | ATF, JWS 3309 |
| Oil manufacturer recommendation | ATF, Mazda FZ |
| Oil manufacturer recommendation | Volvo 1161540 |
| Oil manufacturer recommendation | Ford M2C924-A |
| Oil manufacturer recommendation | Honda ATF-Z1 |
| Oil manufacturer recommendation | ATF, SP-II M |
| Oil manufacturer recommendation | VW G 055 025 |
| Oil manufacturer recommendation | Allison C-4 |
| Oil manufacturer recommendation | ATF, Mercon |
| Oil manufacturer recommendation | ATF, SP-III |
| Oil manufacturer recommendation | Subaru ATF |
| Oil manufacturer recommendation | ATF, M-III |
| Oil manufacturer recommendation | ATF, SP-II |
| Oil manufacturer recommendation | ATF, SP-IV |
OE part numbers
No OEM references found.
About this product
When hydraulic oil performance matters, the CASTROL 15F139 delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Capacity [litre]: Steel l, Container Type: FL, Specification: JASO 1A, Oil: Copper, Manufacturer Approval: GM DEXRON® -IIIH. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. CASTROL is a recognised supplier of automotive replacement 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
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.No equivalent parts found.
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
CASTROL 15f139 . Capacity [litre]: 1 l. Container Type: FL. Manufacturer Approval: Ford MERCON®. Manufacturer Approval: GM DEXRON® -IIIH. Manufacturer Approval: Recommended for Use. Oil: 4. Oil manufacturer recommendation: Allison C-4. Oil manufacturer recommendation: ATF, JWS 3309
- 1x Hydraulic Oil
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 Hydraulic Oil compatible with my car?
Use the vehicle selector at the top of the page to check compatibility. Enter your car's make, model, and engine — we'll confirm whether this Hydraulic Oil fits. All fitment data is verified through TecDoc.
What specifications does this CASTROL Hydraulic Oil have?
This CASTROL Hydraulic Oil has the following specifications: Capacity [litre]: 1 l; Container Type: FL; Specification: JASO 1A; Oil: 4; Manufacturer Approval: GM DEXRON® -IIIH; Manufacturer Approval: Recommended for Use. Check the full specifications table above for complete details.
How much does a Hydraulic Oil cost?
This CASTROL Hydraulic Oil is available for £17.99. Hydraulic Oil prices vary depending on brand, specifications, and vehicle compatibility. CASTROL parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Hydraulic Oil?
Regular inspection of your Hydraulic Oil 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 Hydraulic Oil?
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 Hydraulic Oil fitted by a professional mechanic.
Is the CASTROL 15F139 the same as the CASTROL 15D66F?
No, while both are Hydraulic Oil parts, they are different products. The CASTROL 15F139 has Capacity [litre]: 1 l, Container Type: FL, Specification: JASO 1A. The CASTROL 15D66F may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
