Menu
Skip to main content
phone.svg 015395 66193email.svg sales@flowjet.co.uk
FacebookTwitterBlogYoutube
All Products
Brands
Machine Repair
Size Charts
Offers
Contact Us
Type to search
Type to search

Shop popular:

NEW Nilfisk Hot Pressure WashersPressure WashersMachine Parts by BrandPumps & SparesPopular High Pressure HosesHose ReelsNozzlesPressure Washer TriggersUnloader ValvesInterpump Service Kits

Free UK mainland delivery on orders over £200 excluding VAT

Speak to an Expert: 015395 66193

Finance Available

Rated 4.8 on Google

Cat Pump Filler CapsCat Pump Filler Caps
CAT Pump Filler Cap (5CP21) – Fits 3CP / 4HP / 5CP / 5DX / 6DX / 66DX | OEM 1346798
Cat Pump Oil Cap 46798
Cat Pump Oil Cap 46798
Cat Pump Oil Cap 46798
Cat Pump Oil Cap 46798

CAT Pump Filler Cap (5CP21) – Fits 3CP / 4HP / 5CP / 5DX / 6DX / 66DX | OEM 1346798

SKU: 1346798
exc. vat
inc. vat
Price
£14.08
£16.90
In Stock
Order by 2 PM for next day delivery
  • Get finance on orders over £1000 Learn More
  • Free UK mainland delivery on orders over £200 excluding VAT
  • Bulk discounts available
  • Stock moves quickly. For large or urgent orders, call 015395 66193 to confirm availability.
  • Need assistance? Call 015395 66193

Overview

Genuine CAT Pumps oil filler cap (5CP21), part number 1346798, in red. It seals the crankcase oil reservoir to keep the oil in and contamination out.

Specification

Part number1346798
BrandCAT Pumps
PartOil filler cap
Reference5CP21
ColourRed

Compatibility

Fits CAT 3CP, 4HP, 5CP, 5DX, 6DX and 66DX pumps.

For technical advice or help choosing a part, call 015395 66193 or email sales@flowjet.co.uk.

    Related Products

    01 — 00
    CAT Filler Cap Only

    CAT Filler Cap Only

    SKU: 1343211
    In Stock
    £13.44 inc. vat£11.20 ex vat
    CAT O-Ring Valve Plug

    CAT O-Ring Valve Plug

    SKU: 1314179
    In Stock
    £3.84 inc. vat£3.20 ex vat
    CAT Pump Filler Cap – Fits 2SF / 4SF / 1120 | OEM Part 1345690

    CAT Pump Filler Cap – Fits 2SF / 4SF / 1120 | OEM Part 1345690

    SKU: 1345690
    In Stock
    £23.28 inc. vat£19.40 ex vat

    Get 10% Off Your First Order

    Join our trade list for new-stock alerts, clearance deals and expert cleaning tips. View our Privacy Policy. Unsubscribe at any time.

    Flowjet Cleaning Equipment is a family-run

    business dealing in commercial and industrial

    Pressure Washers

    Customer Service
    Contact UsAbout UsOur BrochuresServicing & RepairMachine Collection & Repair ServiceFinance
    Charts and Drawings
    Pressure Washer Nozzle ChartFoam Nozzle Size ChartParts DrawingFAQsDrone Cleaning EquipmentElectric Motor Sizing Guide
    Information
    Delivery & ReturnsTerms & ConditionsPrivacy PolicyCookie Policy
    Address

    Flowjet Cleaning Equipment LTD

    Unit 4, Gatebeck Farm

    Gatebeck, Kendal

    LA8 0HW

    United Kingdom

    015395 66193sales@flowjet.co.uk
    © 2026. Flowjet Cleaning Equipment Ltd. All rights reserved. Company No. 07548943 / VAT No. 946227313Built by Vitara Commerce
    FacebookTwitterBlogYoutube

    PROMO: Get 10% OFF

    Would you like to save 10% on your order today? Enter your email address to receive a discount code!

    By signing up, you agree to receive marketing emails. View our privacy policy and terms of service for more info.