Summary
Recochem HD Expert Extend coolant data, from Recochem's own source. HD Expert EXTEND Antifreeze/Coolant is a 50/50 premix OAT coolant listed by Recochem. The manufacturer lists 8 OEM or industry spec codes, including WSS-M97B44-D.
What to buy
We have not verified an Amazon listing for this product. See the retailers the manufacturer names.
Where to buyConfirm the specification in your owner’s manual before buying. Product examples are not a fitment guarantee.
Specifications
| Brand | Recochem |
|---|---|
| Maker | Recochem |
| Product | HD Expert EXTEND Antifreeze/Coolant |
| Part numbers (as published) | 26-459 |
| Sizes (as published) | 1000 L, 264 gal |
| Chemistry | OAT |
| Premix or concentrate | Premix 50/50 |
| OEM / industry specs listed | WSS-M97B44-D, GM 6277M, MS-12106, MAN 324 Typ SNF, JIS K2234, MTU MTL 5048, TMC RP-364, BS 6580 |
| Not published by the maker | Base glycol, Colour, ASTM standards, Service life claim, Freeze point, Free-of claims, Datasheet. Check the product label or ask the manufacturer. |
| Source | manufacturer page |
| Last checked | 22 October 2026 |
Specs and approvals listed by the manufacturer
- Meets WSS-M97B44-D per Recochem (Ford)
- Meets GM 6277M per Recochem (GM)
- Meets MS-12106 per Recochem (Chrysler / FCA / Stellantis)
- Meets MAN 324 Typ SNF per Recochem (MAN)
- Meets JIS K2234 per Recochem (Japan (JIS))
- Meets MTU MTL 5048 per Recochem (MTU)
- Meets TMC RP-364 per Recochem (TMC (heavy-duty truck))
- Meets BS 6580 per Recochem (British Standard)
Manufacturer wording: MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS OF:
"Meets X per manufacturer" is our shorthand for any of the manufacturer's own phrases: meets, meets or exceeds, approved, or recommended for applications requiring. It is the manufacturer's claim, not an approval by Coolant.com or by the vehicle maker. Codes are copied as published. Some sources list codes for compatibility rather than formal approval. The wording above shows which.
What the manufacturer says it is for
Offering a long service life, EXTEND is based exclusively on organic additive technology (OAT) making it suitable for all light duty, heavy duty, and diesel engines.
Quoted from the manufacturer's page. Coolant.com has not verified fitment for any vehicle, and a listed make or year range is the manufacturer's statement, not ours.
Alternatives that list the same spec
Other coolants whose makers list at least one of the same OEM codes as HD Expert EXTEND Antifreeze/Coolant. More shared codes first. Match the exact code in your manual, and do not mix chemistries when topping up.
| Product | Same code(s) |
|---|---|
| Prestone MAX All Vehicles Antifreeze + Coolant Prestone · not published · not published | GM 6277M, MS-12106, WSS-M97B44-D |
| Prestone Platinum All Vehicles Antifreeze + Coolant Prestone · not published · Concentrate and Premix 50/50 | GM 6277M, MS-12106, WSS-M97B44-D |
| Zerex Dex-Cool Concentrate Coolant Zerex · OAT · Concentrate | GM 6277M, MS-12106, WSS-M97B44-D |
| ACDelco DEX-COOL Extended Life Coolant (Australia/NZ) ACDelco · OAT · Concentrate | GM 6277M, MAN 324 Typ SNF, WSS-M97B44-D |
| PEAK ORIGINAL EQUIPMENT TECHNOLOGY Antifreeze + Coolant 50/50 Prediluted for North American Vehicles - ORANGE PEAK · OAT · Premix 50/50 | MS-12106, WSS-M97B44-D |
| PEAK ORIGINAL EQUIPMENT TECHNOLOGY Concentrate Antifreeze + Coolant for North American Vehicles - ORANGE PEAK · OAT · Concentrate | MS-12106, WSS-M97B44-D |
Compatibility notes
- If your owner's manual calls for WSS-M97B44-D, Recochem lists that code for this product. Read the exact wording above, and confirm against your manual.
- Chemistry is listed as OAT. Mixing different chemistries can shorten coolant life. See OAT vs HOAT vs IAT and use the mixing checker before topping up.
- Sold premixed: pour as supplied. Do not add water unless the label says to.
Where to buy
We did not find a retailer link on the manufacturer's page that we could check. Try the manufacturer's own site: Recochem product page.
Related tool
Compare this coolant side by side
Open the comparison →Related products with the same listed chemistry
Related products with the same listed chemistry
- Castrol Radicool SF (Castrol, Concentrate)
- ACDelco DEX-COOL Extended Life Coolant (Australia/NZ) (ACDelco, Concentrate)
- Zerex Dex-Cool Concentrate Coolant Check price (Zerex, Concentrate)
- PEAK ORIGINAL EQUIPMENT TECHNOLOGY Antifreeze + Coolant 50/50 Prediluted for North American Vehicles - ORANGE Check price (PEAK, Premix 50/50)
- PEAK ORIGINAL EQUIPMENT TECHNOLOGY Concentrate Antifreeze + Coolant for North American Vehicles - ORANGE Check price (PEAK, Concentrate)
- PEAK DEX-COOL 50/50 Prediluted Antifreeze + Coolant (PEAK, Premix 50/50)
Vehicle makes linked to this coolant
These make pages explain what each vehicle maker specifies. The reason each one links here is shown next to it. This is not a fitment claim, so check your owner's manual.
- What coolant Ford specifies (the manufacturer lists a spec code from this vehicle maker)
- What coolant GM / Chevrolet specifies (the manufacturer lists a spec code from this vehicle maker)
- What coolant Chrysler, Jeep, Ram & Dodge specifies (the manufacturer lists a spec code from this vehicle maker)
More from Recochem
- DIGGERS OEM Premium Green Coolant
- HD EXPERT CLASSIC Antifreeze/Coolant
- HD Expert EXTEND WB Antifreeze/Coolant
- HD EXPERT EXTRA Antifreeze/Coolant
- HD Expert EXTREME Antifreeze/Coolant
- HD EXPERT PREMIUM Antifreeze/Coolant
See every Recochem product we list, with the chemistries and spec codes the maker names, on the Recochem coolant brand page.
See all Recochem coolants, coolants by brand or coolant by car make.
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