Skip to product information
Kubota Fuel Filter Bowl Spring and Element Kit 15521-43930

Kubota Fuel Filter Bowl Spring and Element Kit 15521-43930

SKU: NLT1G03780
$31.99 In Stock
$31.99
Sale price  $31.99 Regular price 
Ships for free in 2–4 business days.
This new aftermarket fuel-filter service kit includes the bowl, spring, seals, and filter element for compatible Kubota tractors and cross-references 15521-43930, 15521-43130, and 15521-43160.
Estimated delivery between
Shop at Northline Parts Best Customer Service Best Online Parts

Let Northline Parts Do the Heavy Lifting for You!

Not sure which part you need? Our team can help you find the right replacement.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
  • Kubota L235, L2550, L2650, L275, L2850, L2900, L2950
  • Kubota L3010, L3130, L3240, L3250, L3300, L3350, L3410, L3430, L3450
  • Kubota L35, L355SS, L3600, L3650, L3710, L3750, L3830, L39, L3940
  • Kubota L4150, L4200, L4240, L4300, L4310, L4330, L4350, L4400
  • Kubota L45, L4600, L4610, L4630, L4740, L48, L4850, L5030, L5040, L5240, L5450, L5740
  • Kubota M4700, M4800, M4900, M5400, M5700, M59
  • Kubota MX4700, MX5000, MX5100; plus KH-151 and KH-191 where the same filter housing is installed

Product Overview

A cloudy or cracked bowl, missing spring, flattened O-ring, or dirty element can let air enter the diesel supply or allow contamination past the filter. This kit refreshes the serviceable pieces together instead of replacing only the element in a damaged housing.

Kubota 15521-43160 is commonly cataloged as the filter element, while 15521-43930 and related references are used for the bowl kit or assembly. Compare the package contents carefully rather than treating every number as the same individual piece.

Match the housing head, bowl threads, element height, spring, seals, and removed part numbers. Stop if the metal filter head is cracked or the shutoff and bleed hardware differ.

Key Features & Performance

  • Clear replacement bowl makes contamination easier to see
  • Spring holds the matching filter element in position
  • New seals help correct air and fuel leakage at the bowl
  • Combined service kit for housings using the listed references

Replaces Part Numbers

  • 15521-43930
  • 1A001-43930
  • 15521-43130
  • 15575-43130
  • 17388-43100
  • 1A001-43130
  • 19244-87110
  • 15521-43160
  • 1A001-43160

Common Uses

  • Replacing a cracked or stained fuel bowl
  • Restoring a missing or corroded element spring
  • Servicing a clogged filter while renewing old seals

Technical Specifications

  • Product Type: Diesel fuel-filter bowl service kit
  • Contents: Bowl, element, spring, and seals as shown
  • System: Low-pressure diesel filtration
  • Condition: New aftermarket service parts

Installation & Fitment

  • Close the fuel shutoff and clean the housing
  • Place parts in removed order for comparison
  • Lubricate new seals with clean diesel where approved
  • Tighten the bowl evenly by hand or to manual specification
  • Bleed air from the system and inspect for seepage

Compatibility Notice

Northline Parts does its best to list all known compatible models, but the correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.

Frequently Asked Questions

Q: Is 15521-43160 the bowl number? A: It is commonly listed as the filter element. The complete service kit uses several related bowl, seal, and assembly references, so compare every piece shown.

Q: Can a bad bowl seal cause hard starting? A: Yes. Air entering the supply can cause loss of prime, but hoses, shutoff valves, lift pumps, and other seals also need inspection.

Q: Does this replace the metal filter head? A: No. The listing is for the service pieces shown; reuse the head only if it is undamaged.

Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.

Part Summary

keywords: Kubota 15521-43930 fuel filter kit, 15521-43160 filter element, Kubota diesel filter bowl replacement, L235 L2850 fuel filter service, tractor fuel system loses prime

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.

Customers also purchased