L-Series

L2500DT, L2500F, L2900DT, L2900GST, L2900F, L3300DT, L3300GST, L3300F.

Other L-Models

t is frequently found in early-generation L-series injection pumps that utilize the D1403 and V2203 engines.

Wheel Loaders

R510 and R510B (specifically serial numbers 10081 and above).

Excavators

KX121-2, KX161-2.

Skid Steers

Early Bobcat models (such as the 753 and 763) using the standard mechanical V2203 engine.

Generators

Various industrial power units where the PFR type pump is installed.

Kubota

2403-M (Naturally Aspirated), V2203-M, V2003-M, D1703-M

Bobcat Equipment

S150, S175, S185, T190 (Models with the updated V2403-M engine).

Kubota Tractors

L-Series “Grand L” models such as the L3130, L3430, L3830, L4330, L4630, and L5030.

Kubota Excavators

KX121-3 and KX161-3.

• Type : Right-Hand Helix (RH)
• Diameter : 5.5 mm (Standard for V2203/V2403 IDI pumps)
• Direction of Helix : Right-hand spiral for fuel metering
• Material : High-Carbon Chrome Steel (Bearing Grade)
• Manufacturing Fit : Clearance measured in microns ($mu$m)

16475-51052 Current Successor: The latest revision, often with improved surface hardening.

16475-51053 Alternative Version: Often used in engines with specific emissions calibrations (Tier 4i).

090150-5790 Denso Cross: The manufacturer’s part number used by fuel injection specialty shops.

090150-5930 Denso Alternative: Used in similar 03-series pumps with slightly different timing.

A-16475-51050 Aftermarket Code: Common identifier for brands like Reliance or TVH.