Kubota D1803 Engine Parts
Alpine Equipment stocks OEM and aftermarket parts for the Kubota D1803 engine — filters, gaskets, seals, pumps, water pumps, injectors, and complete rebuild components. Same-day shop pickup in Utah County; nationwide shipping.
Need pricing on a complete D1803 engine or a full rebuild? Call our factory-certified Kubota team at (801) 701-7394.
- Cylinders3
- Displacement111.4 cu.in.
- Bore & Stroke3.43 x 4.031 in
- Rated Output37.4–56.3 HP
- Max Torque85.3–134.8 lb-ft
- AspirationNaturally aspirated / Turbocharged / Turbocharged + Turbo After Cooler
- Dry Weight333–469 lbs
Specs vary by engine variant/spec code. Confirm fitment by part number or call us.
Kubota D1803 Manuals & Parts Diagrams
Official Kubota parts lists and service-data reference for this model. Use them to find the exact part number or spec, then search or call to order. Or browse the full Kubota manual library.
Illustrated Parts Lists
Service Data
D1803 Engine Parts (878 parts)
01513-50822
STUD
$0.86
01513-50820
STUD
$0.68
01127-50830
BOLT
$0.86
01123-50870
BOLT
$2.64
01123-50835
BOLT
$1.10
01123-50830
BOLT
$0.86
01123-50828
BOLT
$0.86
01123-50825
BOLT
$0.90
01123-50822
BOLT
$1.54
01123-50820
BOLT
$0.71
01023-50650
BOLT
$1.03
01023-50622
BOLT
$0.68
01023-50618
BOLT
$0.68
01023-50616
BOLT
$0.71
More Kubota Engine Parts
Need pricing on a Kubota D1803 engine or a rebuild?
We sell, exchange, and rebuild Kubota engines — and stock the parts to keep yours running. Call or send a quote request.
Call or Text — Factory-Certified Kubota Elite Dealer
349 S 100 W, American Fork, UT 84003 · Mon–Fri 7:00 AM – 5:00 PM · Sat by Appt