What is the Precise 523-6604 Water Separator Filter?

Precise 523-6604 is a heavy-duty Water Separator Filter engineered to OEM-quality standards as a direct replacement. It is built to match the original dimensions, fit and filtration performance for a no-modification interchange.

What does Precise 523-6604 cross-reference to?

Precise 523-6604 cross-references to SK 49021 and SN 40909, among others. Send us any reference number and we will confirm the exact match.

What are the specifications of Precise 523-6604?

Key specifications of Precise 523-6604: Filtration Efficiency: , Dimensions: Overall H: 200 OD: 102 ID: 33 mm, Weight: , Packaging: Moisture-proof bag+Cardboard box, Filter Media Brand: H&V; Ahlstrom. Always confirm these against your machine and operating conditions before ordering.

What is the minimum order quantity and lead time for Precise 523-6604?

Precise 523-6604 ships at a minimum order quantity of 100 pieces, with distributor and fleet pricing and lead time on request. Contact us with the part number for a quote.

Aftermarket Replacement for Caterpillar 523-6604 Fuel Water Separator Filter

Name: Aftermarket Replacement for Caterpillar 523-6604 Fuel Water Separator Filter
Brand: Precise
SKU: 523-6604
Price: 4.85 USD
Availability: InStock

Part Number523-6604

Reference BrandCaterpillar

TypeWater Separator Filter

MOQ100 Pieces

Delivery15 days

Price

$4.85

Reference price only. Final pricing depends on quantity, packaging, destination, and trade terms.

Dimensions: Overall H: 200 OD: 102 ID: 33 mm
Packaging: Moisture-proof bag+Cardboard box

Cross ReferenceSK 49021 and SN 40909

Send model or photo

Share the current number or product image.

Verify fitment

We check specifications and application.

Confirm the quote

Agree sample, packaging, lead time and price.

Aftermarket Replacement for Caterpillar 523-6604 Fuel Water Separator Filter

It is primarily used across mid-sized Cat hydraulic excavators, compaction equipment, and select industrial machinery.

Buyer decision support

Cross-reference check

Treat SK 49021 and SN 40909 as reference numbers, then confirm dimensions, sealing, thread, flow direction, and service interval before replacement.

OEM and private-label supply

For 523-6604, Precise can discuss samples, stable production, packaging, labeling, and OEM/private-label requirements from MOQ 100 pieces.

Information to send

Send the current part number, product photos, dimensions or drawings, Filtration Efficiency, Dimensions, Weight, and Packaging, quantity, destination market, and packaging request to speed up verification.

Technical Specifications

Parameter	Value
Filtration Efficiency
Dimensions	Overall H: 200 OD: 102 ID: 33 mm
Weight
Packaging	Moisture-proof bag+Cardboard box
Filter Media Brand	H&V; Ahlstrom
Replacement Interval

Cross Reference Numbers

This filter is compatible with the following OEM and aftermarket part numbers.

SF

SK 49021

HIFI

SN 40909

Frequently asked questions

What is the Precise 523-6604 Water Separator Filter?: Precise 523-6604 is a heavy-duty Water Separator Filter engineered to OEM-quality standards as a direct replacement. It is built to match the original dimensions, fit and filtration performance for a no-modification interchange.
What does Precise 523-6604 cross-reference to?: Precise 523-6604 cross-references to SK 49021 and SN 40909, among others. Send us any reference number and we will confirm the exact match.
What are the specifications of Precise 523-6604?: Key specifications of Precise 523-6604: Filtration Efficiency: , Dimensions: Overall H: 200 OD: 102 ID: 33 mm, Weight: , Packaging: Moisture-proof bag+Cardboard box, Filter Media Brand: H&V; Ahlstrom. Always confirm these against your machine and operating conditions before ordering.
What is the minimum order quantity and lead time for Precise 523-6604?: Precise 523-6604 ships at a minimum order quantity of 100 pieces, with distributor and fleet pricing and lead time on request. Contact us with the part number for a quote.