Name: HD Expert EXTEND Antifreeze/Coolant
Brand: Recochem
SKU: 26-459

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.

Disclaimer: General information only, not professional advice. Always use the coolant specified in your vehicle owner's manual. Using the wrong coolant can damage an engine.

Independent and not affiliated. Coolant.com is not affiliated with, sponsored by or endorsed by any coolant or vehicle maker or retailer listed here, and we earn nothing from these links. Brand and spec names are used only to identify products. Every field comes from the manufacturer's own page or datasheet, checked 22 October 2026. "Not published" means we could not find it in that source. We record no prices.

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
Base glycol	not published
Colour	not published
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
ASTM standards listed	not published
Service life claim	not published
Freeze point (as published)	not published
Free-of claims	not published
Datasheet	not published
Source	manufacturer page
Last checked	22 October 2026

Specs and approvals listed by the manufacturer

Meets WSS-M97B44-D per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (Ford)
Meets GM 6277M per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (GM)
Meets MS-12106 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (Chrysler / FCA / Stellantis)
Meets MAN 324 Typ SNF per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (MAN)
Meets JIS K2234 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (Japan (JIS))
Meets MTU MTL 5048 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (MTU)
Meets TMC RP-364 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (TMC (heavy-duty truck))
Meets BS 6580 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (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.

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.

Always check your owner's manual first. Use the coolant spec printed in your owner's manual or service information. A listing here is the manufacturer's own claim (meets, exceeds, approved or recommended, worded as they put it). It is not our approval and not a fitment guarantee for your vehicle. If in doubt, ask your dealer or a qualified mechanic.

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.

Compare this coolant side by side

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PEAK ORIGINAL EQUIPMENT TECHNOLOGY Antifreeze + Coolant 50/50 Prediluted for North American Vehicles - ORANGE (PEAK, Premix 50/50)
PEAK ORIGINAL EQUIPMENT TECHNOLOGY Concentrate Antifreeze + Coolant for North American Vehicles - ORANGE (PEAK, Concentrate)
PEAK DEX-COOL 50/50 Prediluted Antifreeze + Coolant (PEAK, Premix 50/50)

More from Recochem

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Browse the full coolant directory, or use Find my car coolant to match the spec in your owner's manual.

Sources

Recochem product page (status on 22 Oct 2026: 200)

Recochem HD Expert Extend: specs and approvals