Summary
Recochem HD Expert Premium coolant data, from Recochem's own source. HD EXPERT PREMIUM Antifreeze/Coolant is a concentrate and 50/50 premix coolant listed by Recochem. The manufacturer lists 6 OEM or industry spec codes, including WSS-M97B51-A1.
Specifications
| Brand | Recochem |
|---|---|
| Maker | Recochem |
| Product | HD EXPERT PREMIUM Antifreeze/Coolant |
| Part numbers (as published) | 16-734, 16-834, 16-835, 26-739, 26-839 |
| Sizes (as published) | 3.78 L, 9.46 L, 208 L, 55 gal, 1000 L, 264 gal |
| Chemistry | not published |
| Base glycol | not published |
| Colour | not published |
| Premix or concentrate | Concentrate and Premix 50/50 |
| OEM / industry specs listed | WSS-M97B51-A1, JIS K2234, CAT EC-1, Detroit Diesel 7SE298, MTU MTL 5048, TMC RP-329B |
| ASTM standards listed | not published |
| Service life claim | not published |
| Freeze point (as published) | not published |
| Free-of claims | phosphate-free, amine-free |
| Datasheet | not published |
| Source | manufacturer page |
| Last checked | 22 October 2026 |
Specs and approvals listed by the manufacturer
- Meets WSS-M97B51-A1 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (Ford)
- Meets JIS K2234 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (Japan (JIS))
- Meets CAT EC-1 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (Caterpillar)
- Meets Detroit Diesel 7SE298 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (Detroit Diesel)
- Meets MTU MTL 5048 per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (MTU)
- Meets TMC RP-329B per Antifreeze is glycol plus inhibitors. Choose it by your vehicle's specification. (TMC (heavy-duty truck))
Manufacturer wording: PREMIUM Extended Life Diesel – recommended for use where an extended service interval is required
"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
It is designed for use in older model light and heavy duty diesel applications where an extended service interval is required and is recommended for use in on-road truck, off-road, farm, marine and stationary applications including, but not limited to, Caterpillar, Cummins, Detroit Diesel/ MTU, GM Heavy Truck, Freightliner, PACCAR and Volvo Mack.
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-M97B51-A1, Recochem lists that code for this product. Read the exact wording above, and confirm against your manual.
- 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.
Compare this coolant side by side
Open the comparison →More from Recochem
- DIGGERS OEM Premium Green Coolant
- HD EXPERT CLASSIC Antifreeze/Coolant
- HD Expert EXTEND Antifreeze/Coolant
- HD Expert EXTEND WB Antifreeze/Coolant
- HD EXPERT EXTRA Antifreeze/Coolant
- HD Expert EXTREME Antifreeze/Coolant
See all Recochem coolants, coolants by brand or coolant by car make.
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)