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BALDWIN · Hydraulic Filter

BT9558-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 1/4–11 BSP-PL
Outside diameter
4 21/32 in.
Outside diameter (mm)
118.3
Length
8 3/32 in.
Length (mm)
205.6
Contains
Integral Post Seal
Gasket
[1] Included
Manufacturer part number
BT9558-MPG
GTIN
00791440085817

Baldwin replacement references: Quincy 142136

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 BT9558-MPG. Keep any size, quantity or application conditions with the match. A cross-reference alone does not confirm fit on your equipment.

8 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
BALDWIN FILTERSBT9558MPG1
CARQUEST941441
GRAINGER5WXW81
KELTEC9500111
NAPA GOLD4011501
NAPA X4011500
QUINCY1283820501
QUINCY1421361

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.

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.