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BALDWIN · Hydraulic Filter

BT8421-MPG

Max. Perf. Glass Hydraulic Spin-on

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Stock checked September 11, 12:46 PM Eastern. Call before travelling so we can confirm what is still available.

THE DETAILS THAT MATTER

FILTER SPECIFICATIONS.

Filter type
Maximum Performance Glass Hydraulic Spin-on
Thread
1 1/2–16
Outside diameter
5 1/16 in.
Outside diameter (mm)
128.6
Length
6 31/32 in.
Length (mm)
177.0
Manufacturer part number
BT8421-MPG
GTIN
00791440057517

Can be used with OB1314 and OB1316 bases (requires optional G286-C gasket).

Baldwin replacement references: Hycon MFE16003BN2; Ingersoll-Rand 59700674; Pall HC7500SDP4H

Baldwin PIES August 20, 2026 · Baldwin Product Guide July 24, 2026.

START WITH THE NUMBER YOU HAVE

CROSS-REFERENCE NUMBERS.

Baldwin’s reference lists the numbers below for BT8421-MPG. Keep any size, quantity or application conditions with the match. A cross-reference alone does not confirm fit on your equipment.

37 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
BALDWIN FILTERSBT8421MPG0
BIG A FILTER914571
CARQUEST844571
CATERPILLAR3I15121
DONALDSONP1694301
FAIREY ARLONFC10581
FAIREY ARLONR750H04031
FLEETGUARDHF67031
FLEETGUARDHF67751
FLEETRITEHFR867031
FLEETRITEHFR867751
GRAINGER4ERC41
GREYFRIARSHS76271
HASTINGSBT8421MPG1
HYCONMFE16003BN21
INGERSOLL RAND597006741
LHASPE50BTA31
M.P. PRODUCTSCSG100A03A1
MICHIGAN FLUID POWERFPE5003G1
MOOG71601751
MOOGA7226611
NAPA GOLD74571
NAPA X74571
PALLHC7500SDP4H1
PALLHC7500SKP4H1
PALLHC7500SUP4H1
PALLHC9500SUP4H1
PARKER HANNIFIN9342001
PTI TECHNOLOGIESF4E050GCB1
PUROLATOR-FACET401051
SF-FILTER / SCHUPPSPH97241
VICKERSV0211B1V031
WIX5574571
WIX574571
WOODGATEWGPP75041
ZINGAZSE031
ZINGAZSE03P1

Source: Baldwin Specs & Interchange · July 27, 2026. Reference quantity is part of the manufacturer’s cross-reference, not store stock.

CHECK THE EQUIPMENT. CHECK THE ENGINE.

APPLICATIONS & EQUIPMENT.

Donaldson HBK05 Assembly

Baldwin Product Guide summary. This description does not establish fit for every model from each manufacturer.

Call with your equipment model, engine and the number on the existing filter. Our counter will help verify the application.

A REAL COUNTER. CLOSE TO HOME.

YOUR LOCAL FILTER PEOPLE.

Bring the number off your old filter, or your equipment and engine details. We’ll help check the match.