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Perkins Coolant Filters
Perkins 26550002 Coolant Filter
A spin-on coolant filter, the less-documented sibling of the 26550001. Confirm the complete element number and coolant chemistry before ordering.
- Part number
- 26550002
- Type
- Spin-on coolant filter
- Engine reference
- Perkins (serial and configuration confirmation required)
Availability and delivery terms confirmed with quotation.
What the 26550002 Is, and Its 26550001 Sibling
The 26550002 is a spin-on coolant filter in the engine cooling circuit. It removes debris from the coolant and, depending on configuration, may carry a coolant-conditioning additive that protects against corrosion and liner pitting.
Its sibling, the 26550001, has a Perkins Shop listing naming the 1300 Series. The 26550002 is referenced mainly through a distributor page and aftermarket interchanges. That documentation gap is the useful signal: confirm the 26550002 against an OEM document, not from a shop listing alone.
Complete part number
26550002 and 26550001 are one digit apart and not interchangeable. Read the complete number off the removed filter.
Documentation weight
The 26550001 has a manufacturer listing; the 26550002 requires OEM-document verification for the build.
Coolant chemistry
Confirm whether the filter is pre-charged with additive such as DCA4 or blank, against the coolant specification for the build.
Specifications, and How a 26550002 Order Is Quoted
We do not republish retailer dimensions. Outside diameter, height, thread and micron rating vary between listings, and a copied spec is not evidence. Dimensions, efficiency and additive content are confirmed against the manufacturer specification for the build when we quote.
| Check | Value to compare | How to confirm |
|---|---|---|
| Thread | 11/16-16 (retailer-cited) | Match the old filter / confirm per quotation |
| Outside diameter | ~94 mm (retailer-cited) | Confirm per quotation |
| Height | ~136–138 mm (retailer-cited) | Confirm per quotation |
| Micron rating | 50 micron (retailer-cited) | Confirm per quotation |
| Additive content | DCA4 or blank, depending on configuration | Confirm against coolant chemistry |
| Order line | Offered element, maker, complete number, quantity, delivery terms | Stated in your quotation |
Swipe horizontally to view all columns.
26550002 Cross-References Are Candidates, Not Confirmations
| Brand | Candidate reference |
|---|---|
| Donaldson | P552106 |
| Fleetguard | WF2106 (also WF552106 / WFR82106) |
| Baldwin | BW5082 / BW5137 |
| WIX | 24206 |
| Hengst | H32WF |
| SF Filter | SW1621 |
| Case IH / International | 1822313C1 |
| AGCO / Massey-Ferguson | 72509523 / 26550002 |
Candidate references only. Lists differ; confirm against the engine serial and coolant chemistry. Verify a number with the filter lookup before treating it as settled.
26550002 vs 26550001: One Digit, Different Documentation
The 26550002 and the 26550001 are one digit apart and both sit in this coolant category, but they carry different documentation weight. The 26550001 has a Perkins Shop listing that names the 1300 Series. The 26550002 does not; its listing trail runs through a distributor page and aftermarket interchanges.
Do not treat them as interchangeable. A coolant filter that is right for one build can be wrong for another, and the additive content differs by configuration. Read the complete number off the removed filter and confirm it against the parts record for the build.
Complete number check
Read the full number off the removed filter, including any suffix.
Documentation check
Confirm 26550002 against an OEM document, not a distributor page alone.
No sibling substitution
Do not substitute 26550001 for 26550002 without a parts-record and chemistry check.
“Water Filter” or “Coolant Filter”, and Why Chemistry Matters
Same element. One chemistry to confirm.
Perkins Shop calls this family a “water filter”; the trade calls it a coolant filter.
They name the same spin-on element. The name matters less than the chemistry. A coolant filter either carries a coolant-conditioning additive, such as DCA4 named in some listings, or it is a blank filter used with a liquid additive added separately.
Confirm the additive content against the coolant specification for the build, not from a reseller table.
Know exactly what is being quoted.
Each line is checked against the parts record and coolant chemistry. Your quotation states the offered item, maker, complete part number, quantity and delivery terms.
Availability is confirmed against your list. No real-time stock feed is published.
Request a QuoteFrequently Asked Questions
What does the Perkins 26550002 fit?
It is a spin-on coolant filter, but unlike its sibling the 26550001, no clean manufacturer listing names the engine series for it. Confirm by engine serial and configuration.
Is the 26550002 the same as the 26550001?
No. They are one digit apart and both coolant filters, but the 26550001 has a Perkins Shop listing for the 1300 Series and the 26550002 is referenced through a distributor and aftermarket interchanges. Confirm the complete number.
What does the 26550002 cross to?
Candidate references include Donaldson P552106, Fleetguard WF2106, Baldwin BW5082, WIX 24206 and Hengst H32WF. Treat each as a candidate to check.
Is a coolant filter the same as a water filter?
Yes, in this Perkins family. Perkins Shop calls it a "water filter" and the trade calls it a coolant filter. They name the same spin-on element.
Does the 26550002 contain a coolant additive?
Some listings name a DCA4 additive. Whether the filter is pre-charged or blank depends on the coolant chemistry for the build. Confirm it against the coolant specification, not from a reseller table.
Confirm the Number, Then Confirm the Chemistry
Send engine model, serial number, the number off the filter you are replacing, and the coolant type or chemistry in use.