Filtrec · Filtrec elements · inline line

RHK251M08B filter element: specifications & equivalents

Q: What are the dimensions of the RHK251M08B filter element?

The published envelope is 88 mm OD × 328 mm length with a 40.2 mm inside diameter (3.465 × 12.913 in × 1.583 in ID). Confirm against the housing drawing before ordering.

The RHK251M08B is a Filtrec inline-line hydraulic filter element, sized 88 × 328 mm OD × length (ID 40.2 mm). Verify against the current manufacturer data sheet before ordering.

Envelope OD × L 88 × 328 mm

Inside diameter 40.2 mm

Line type inline

Catalog verified. Parameters extracted from the manufacturer’s electronic catalog / official interchange document and checked 2026-10-03. Confidence score 0.90.

Dimensions and media grade are taken from Filtrec’s official Cross Navigator, which maps this element to specific competitor part numbers. Filtrec does not publish collapse pressure or seal compound in this API for every code — verify collapse rating, seal execution and bypass setting against the current Filtrec data sheet for the target housing before ordering.

Specification table

Parameter	Value
Filter type	inline line
Outside diameter OD	88 mm
Inside diameter ID	40.2 mm
Length	328 mm
Integral bypass valve	none (housing/valve-dependent)
Manufacturer part no.	RHK251M08B
Source catalog	Filtrec S.p.A.: Filtrec Cross Navigator
Last verified	2026-10-03

Sources: Filtrec S.p.A. — Filtrec Cross Navigator — accessed 2026-10-03.

Filtrec® and all model designations are trademarks of their respective owners, used here for identification only — ElementRef is an independent reference site, not an authorized Filtrec distributor.

Dimensional drawing

Reference drawing generated from the source values cited on this page — nominal envelope, schematic section, not a manufacturer drawing. The PDF is A3 landscape and vector; the PNG is sized for a WhatsApp preview. Confirm thread, end caps, seal compound and micron/Beta grade against the original element before ordering.

Dimensions & series range

Outside diameter	88 mm (3.465 in)
Inside diameter	40.2 mm (1.583 in)
Overall length	328 mm (12.913 in)

All 88×328 mm interchange elements →

Cross references & equivalents

No catalog-verified cross references yet. This model is in the manual verification queue — request a verified equivalent.

Interchange levels: full catalog-confirmed drop-in · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.

Full chart: Filtrec cross reference chart →

How the RHK251M08B model number is decoded

M08Filtrec internal media grade code (media).

Typical equipment & applications

Filtrec aftermarket replacement hydraulic/lube filter element (RHK family), form-fit-function cross-referenced in Filtrec's official Cross Navigator.

Frequently asked questions

What are the dimensions of the RHK251M08B filter element?

The published envelope is 88 mm OD × 328 mm length with a 40.2 mm inside diameter (3.465 × 12.913 in × 1.583 in ID). Confirm against the housing drawing before ordering.

What replaces the RHK251M08B filter element?

Cross references are being verified for this model — use the inquiry form and the engineering desk will confirm equivalents.

Is a same-envelope aftermarket element always a drop-in replacement?

No. Matching OD and length only proves the cartridge fits the bowl. End-cap style, seal compound, micron/Beta rating, collapse pressure and bypass configuration must also match; the table above tags every equivalent as full, partial or verify for exactly this reason.

Same-envelope elements from other brands

View full interchange →

These 22 catalog element(s) share the 88×328 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.

R2.0933-03K1 ARGO-HYTOS · 5 µm R2.0933-06K1 ARGO-HYTOS · 10 µm R2.0933-08K1 ARGO-HYTOS · 16 µm RHK201G10B Filtrec · 12 µm RHK201G10V Filtrec · 12 µm RHK201M10B Filtrec · 15 µm RHK201M10B/ESD Filtrec · 15 µm RHK201M10V Filtrec · 15 µm RHK201M10V/ESD Filtrec · 15 µm RHK201M15B Filtrec · 20 µm

Other models in the Filtrec elements series

All 9874 (list page 12/20) →

A105C05 96×60 mm · 5 µm A105C10 96×60 mm · 10 µm A105C25 96×60 mm · 25 µm A105G03 96×60 mm · 5 µm A105G06 96×60 mm · 7 µm A105G10 96×60 mm · 12 µm A105G25 96×60 mm · 22 µm A105T125 96×60 mm · 125 µm A105T250 96×60 mm · 250 µm A105T60 96×60 mm · 60 µm

Reviewed & verified by the ElementRef engineering desk against Filtrec S.p.A. on 2026-10-03. Read our editorial & correction policy.