Racor S3228TUL 10-Micron Replacement Fuel Filter Element – For 320R-RAC-02 / 490R Series

Racor S3228TUL 10-Micron Replacement Fuel Filter Element – For 320R-RAC-02 / 490R Series

Part Number: S3228TUL (distributor SKU: 62-S3228TUL)
Brand: Racor
Type: 10-micron replacement spin-on gasoline fuel filter/water separator element
Filtration: 10 micron Aquabloc®
Filter head thread: 1"-14
Bowl connection: 3.125" female
Flow direction: Outside-in
Designed for: Racor 320R-RAC-02 and 490R-RAC-01 assemblies
Fuel compatibility: Gasoline, ethanol-blended fuels (E10)
Certifications: UL Listed

Product Overview

The Racor S3228TUL is the standard 10-micron Aquabloc® replacement spin-on filter element for the Racor 320R-RAC-02 metal-bowl inboard/sterndrive assembly and the 490R-RAC-01, using the S3228 element format with a 1"-14 filter-head thread. Aquabloc® media separates free water and captures fuel-borne contaminants while maintaining low flow restriction. At routine service intervals, only the spin-on element is replaced — the reusable metal bowl, bowl O-ring, drain, and mounting head remain in service and transfer to the new element.

• 10-micron Aquabloc® media separates water and captures fuel-borne contaminants
• Standard replacement element for the Racor 320R-RAC-02 metal-bowl inboard/sterndrive assembly
• Also fits the Racor 490R-RAC-01 assembly
• Filter head thread: 1"-14 | Bowl connection: 3.125" female | Flow: outside-in
• Height: approx. 4.0" / 102 mm | Outside diameter: approx. 3.8" / 97 mm
• Compatible with ethanol-blended gasoline (E10)
• UL Listed
• Corrosion-resistant construction
• Element only — bowl, O-ring, drain, and mounting head are separate reusable components
• Weight: approx. 227 g

Element Only: The S3228TUL is the replaceable spin-on filter element. The metal bowl (RK30473-02), bowl O-ring kit (RK33544), and drain components from the existing 320R-RAC-02 assembly are reusable and transfer to the new element during service. For the complete 320R-RAC-02 assembly, see the Racor 320R-RAC-02.

10-Micron vs. 2-Micron — S3228TUL vs. S3228SUL

• S3228TUL (this part) — 10 micron: Standard routine-maintenance element for the 320R-RAC-02 and 490R-RAC-01. Lower flow restriction. Correct for most gasoline marine inboard and sterndrive applications.
• S3228SUL — 2 micron: Fine-filtration retrofit for the same assemblies. For high-pressure fuel injection systems or installations where maximum particulate removal is specified. More restrictive under contaminated fuel conditions.

Use the micron rating specified in your engine manufacturer’s service documentation.

Compatible Applications

• Racor 320R-RAC-02 — metal-bowl inboard/sterndrive assembly, standard 10-micron element replacement
• Racor 490R-RAC-01 — 10-micron element replacement
• Compatible Racor 320R/490R series assemblies using the S3228 element format with a 1"-14 filter-head thread

Fitment Note: Confirm the existing assembly uses a 1"-14 center thread and the S3228 element format before ordering. S3228TUL is not interchangeable with elements using other thread sizes (e.g., 11/16"-16 used in the B32013/B32020MAM families or 3/8"-18 NPTF used in the 660R series). If 2-micron filtration is required, use S3228SUL instead.

Dimensions

• Height: approx. 4.0" / 102 mm
• Outside diameter: approx. 3.8" / 97 mm
• Center thread: 1"-14
• Bowl connection: 3.125" female
• Flow direction: outside-in

Service Information

Replace the S3228TUL per the engine or fuel-system manufacturer’s maintenance schedule, or sooner if fuel restriction symptoms develop (hesitation, hard starting, power loss), water accumulation in the bowl is excessive, or the filter has been exposed to heavily contaminated fuel. Inspect the bowl O-ring (RK33544) at every element change and replace if worn — a degraded O-ring is the most common source of post-service weeping on 320R-RAC-02 metal-bowl assemblies.

Part Number Reference

• Racor: S3228TUL
• Distributor SKU: 62-S3228TUL
• Compatible assemblies: 320R-RAC-02, 490R-RAC-01
• 2-micron version (same assemblies): Racor S3228SUL
• Complete metal-bowl inboard assembly: Racor 320R-RAC-02
• Complete clear-bowl outboard assembly: Racor 320R-RAC-01
• 320R-RAC-02 bowl O-ring kit: RK33544
• 320R-RAC-02 metal bowl kit: RK30473-02

Installation Notes

• Shut off the fuel supply before beginning element replacement
• Remove the metal bowl from the old element — inspect the bowl and O-ring (RK33544) for condition; replace O-ring if worn
• Transfer the serviceable metal bowl and drain to the new S3228TUL element
• Lightly lubricate the element thread and sealing surface with clean fuel or a compatible O-ring lubricant
• Thread the S3228TUL onto the 1"-14 filter head until the sealing surface seats, then hand-tighten — do not over-tighten
• Ensure the metal bowl drain plug is securely reinstalled before returning the system to service
• Restore fuel supply, prime the fuel system per the engine manufacturer’s procedure, and inspect all connections and the bowl for leaks before starting the engine

Technical FAQ

What is the difference between S3228TUL and S3228SUL? Both fit the same 1"-14 Racor 320R/490R assemblies. S3228TUL is 10-micron (standard maintenance, lower restriction). S3228SUL is 2-micron (finer filtration, higher restriction). Use the rating specified in your engine’s service documentation.

Is S3228TUL the same as S3227? No — both use a 1"-14 thread but are different element formats matched to different assembly configurations within the 320R/490R family. Confirm the element part number against your specific assembly before ordering.

Does S3228TUL include the metal bowl? No — the metal bowl (RK30473-02), O-ring kit (RK33544), and drain are separate reusable components that transfer from the old element during service.

Is S3228TUL compatible with E10 gasoline? Yes — Aquabloc® media is compatible with ethanol-blended fuels including E10.

Related Products

• Racor 320R-RAC-02 Gasoline Fuel/Water Separator – 10 Micron | Metal Bowl | Inboard / Sterndrive
• Racor 320R-RAC-01 Gasoline Fuel/Water Separator – 10 Micron | Clear Bowl | Outboard
• Racor S3228SUL 2-Micron Replacement Fuel Filter Element – For 320R / 490R Series
• Racor S3227 10-Micron Replacement Fuel Filter Element – For 320R-RAC-01 / 320R-RAC-02
• Racor 660R-RAC-01 Gasoline Fuel/Water Separator – 10 Micron | Clear Bowl | Outboard (120 GPH)
• Racor 660R-RAC-02 Gasoline Fuel/Water Separator – 10 Micron | Metal Bowl | Inboard / Sterndrive
• Sierra 18-7919 Fuel/Water Separator Element – 10 Micron

Parts Desk Insights

The S3228TUL is the standard service element for the 320R-RAC-02 metal-bowl inboard/sterndrive assembly — the most important qualifier is confirming the customer has the 320R-RAC-02 (metal bowl, inboard/sterndrive) rather than the 320R-RAC-01 (clear bowl, outboard), which uses the S3227. The TUL vs. SUL suffix is the most common ordering error: S3228TUL is 10-micron and S3228SUL is 2-micron — always confirm the micron specification in the engine’s service manual before recommending the 2-micron SUL version. Bowl O-ring (RK33544) condition should be checked at every element change — the drain plug on the metal bowl should also be confirmed tight after reassembly, as a loose drain plug is the most common post-service leak point on metal-bowl assemblies.