Filtrec · Filtrec elements · inline line

R321C05PV filter element: specifications & equivalents

Q: What are the dimensions of the R321C05PV filter element?

The published envelope is 154.5 mm OD × 910 mm length with a 66.5 mm inside diameter (6.083 × 35.827 in × 2.618 in ID). Confirm against the housing drawing before ordering.

The R321C05PV is a Filtrec inline-line hydraulic filter element, sized 154.5 × 910 mm OD × length (ID 66.5 mm). Verify against the current manufacturer data sheet before ordering.

Envelope OD × L 154.5 × 910 mm

Inside diameter 66.5 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	154.5 mm
Inside diameter ID	66.5 mm
Length	910 mm
Integral bypass valve	none (housing/valve-dependent)
Manufacturer part no.	R321C05PV
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	154.5 mm (6.083 in)
Inside diameter	66.5 mm (2.618 in)
Overall length	910 mm (35.827 in)

All 155×910 mm interchange elements →

Cross references & equivalents

Equivalent model	Brand	Match level	Note
↔ P736EAL051F1 page in verification queue	Donaldson	full	Filtrec's official Cross Navigator maps PUROLATOR P736EAL051F1 to FILTREC R321C05PV as a direct replacement, publishing the FILTREC element's OD/ID/height envelope and media grade.

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 R321C05PV model number is decoded

Typical equipment & applications

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

Frequently asked questions

What are the dimensions of the R321C05PV filter element?

The published envelope is 154.5 mm OD × 910 mm length with a 66.5 mm inside diameter (6.083 × 35.827 in × 2.618 in ID). Confirm against the housing drawing before ordering.

What replaces the R321C05PV filter element?

1 catalog-confirmed full match(es) (P736EAL051F1)

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 35 catalog element(s) share the 155×910 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.

R312C10 Filtrec · 10 µm R312C10P Filtrec · 10 µm R312G10P Filtrec · 12 µm R312G25P Filtrec · 22 µm R312GW06P Filtrec · 7 µm R312GW10P Filtrec · 12 µm R312GW25P Filtrec · 22 µm R312P10 Filtrec R312P10P Filtrec R312P40 Filtrec

Other models in the Filtrec elements series

All 9874 (list page 10/20) →

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.