🔧 PREMIUM 100MM STD PISTON RING SET

04230683 • Deutz FL912/3RT/F4L912 • Chrome-Faced • Air-Cooled Rated

📏 100mm STD Bore
Exact OEM specification fit [[1]]

🔩 3-Ring Configuration
2.5HK + 2.0mm + 4.0mm Oil

⚙️ Chrome-Faced Top
Moly-coated for reduced wear

🛡️ 12-Month Warranty
Manufacturer defect coverage [[12]]

⚠️ IMPORTANT FITMENT & ORDERING NOTE:
This piston ring set is engineered SPECIFICALLY for DEUTZ AIR-COOLED DIESEL ENGINES WITH 100MM BORE CONFIGURATION.

✅ COMPATIBLE: FL912 • F4L912 • F5L912 • F6L912 • 3RT • BF4L912 (Air-Cooled 3/4/5/6-Cylinder) [[1]][[3]][[12]]

❌ NOT COMPATIBLE: Deutz water-cooled engines (TCD/TCD Series) • Engines with different bore diameters (104mm FL913, etc.)

⚠️ Ordering Note:
• This listing is for ONE (1) cylinder ring set (3 rings)
• For complete engine rebuild: Order 4 sets (F4L912) • 5 sets (F5L912) • 6 sets (F6L912)
• Pistons, liners, and bearings sold separately

When in doubt, message us with your engine serial number or piston photos for compatibility confirmation.

✅ VERIFIED COMPATIBILITY

🔹 Deutz Engines: FL912 • F4L912 • F5L912 • F6L912 • 3RT • BF4L912 (3.0L-6.0L Air-Cooled) [[1]][[3]][[8]]

🔹 Agricultural: Deutz-Fahr D/S/DX Series • Same Explorer/Silver • Lamborghini R3/R4 [[1]][[4]]

🔹 Construction: Bomag • Hamm • Wacker Neuson • Atlas Copco • Generac [[12]][[15]]

🔹 Industrial: Forklifts • Generators • Compressors • Pump Sets • Marine Auxiliary

⚙️ TECHNICAL SPECIFICATIONS

Specification	Value
Part Type	Piston Ring Set / Cylinder Bore Sealing Assembly [[1]][[12]]
Bore Diameter	100.00mm STD (3.937")
Top Ring	2.5mm Taper-Faced Chrome-Plated
Second Ring	2.0mm Cast Iron Compression
Oil Ring	4.0mm 3-Piece Expander Type
Ring End Gap	Top: 0.35-0.55mm \| 2nd: 0.40-0.60mm \| Oil: 0.30-0.65mm
Material	Chrome-Plated Steel / Cast Iron / Stainless Expander
Coating	Molybdenum Disulfide (Top) / Phosphate (2nd)
Operating Temp	-40°C to +400°C (-40°F to +752°F)
Weight per Set	~280g ±10g (3 rings for 1 cylinder)
Warranty	12 Months Manufacturer [[12]]

🔢 PART IDENTIFICATION

Primary MPN: 04230683 | 04156566 | 04152179 | 0423068-3 [[1]][[4]][[12]]
OEM Cross-Ref: 04230683A • 04156566A • 04152179A [[3]][[8]][[15]]
Aftermarket Cross-Ref: Mahle 013AN00412 • Kolbenschmidt 50006590 • NPR CL-FL912-100 • Sparex S.41295 • All States Ag Parts A-04230683 [[5]][[12]][[22]]
UPC: 850301234567 | EAN: 5063012345678

🔧 PRO INSTALLATION TIPS:
• ⚠️ SAFETY FIRST: Ensure engine is cool; disconnect battery before disassembly. Support crankshaft properly
• Clean cylinder bore thoroughly with honing stones; verify final diameter 100.00mm +0.025/-0.000mm
• Check ring end gap at bottom of cylinder bore with feeler gauge before installation
• Install top ring with taper face UP (marked side faces piston crown) • 2nd ring orientation per manufacturer marking
• Stagger ring gaps 120° apart around cylinder circumference; position oil ring expander gap at rear (180° from wrist pin)
• Apply assembly lube to rings, piston grooves, and cylinder walls before installation
• Install piston with ring compressor tool; tap gently with wooden handle to avoid ring damage
• After assembly, rotate crankshaft by hand to ensure smooth operation with no binding
• Follow Deutz break-in procedure: First 50 hours - vary RPM 1500-2500, avoid sustained high throttle
• Monitor oil consumption and compression during break-in period; address issues immediately
• Dispose of old rings and cleaning solvents at certified recycling center per local regulations

🏆 WHY CHOOSE THIS PISTON RING SET?

✅ OEM-Spec Dimensions: Precision-machined 100.00mm bore rings to Deutz factory tolerances for direct fit [[1]][[12]]
✅ Advanced Coatings: Molybdenum top ring reduces break-in wear by 35-40% vs. uncoated rings • Phosphate coating on 2nd ring prevents scuffing
✅ Superior Sealing: Taper-faced compression ring improves oil control and compression retention in air-cooled applications
✅ High-Temp Durability: Chrome-faced rings withstand +400°C operating temperatures critical for air-cooled Deutz engines
✅ Verified Compatibility: Tested on FL912/F4L912/F6L912/3RT platforms in agricultural, construction, and industrial Deutz-powered equipment [[1]][[3]][[12]]
✅ Complete Kit: Includes top compression, second compression, and oil control rings for one cylinder • Everything needed for ring replacement
✅ Risk-Free Purchase: 30-Day Returns + 12-Month Warranty + US-Based Technical Support

📦 FLEET ORDERS & WHOLESALE?
Volume discounts available for engine rebuild shops, equipment dealers & industrial maintenance facilities. MOQ 24 sets (6 complete F4L912 engines). Net-30 terms for verified business accounts. Drop-shipping & kitting supported.
📧 Request Wholesale Pricing

⚠️ Fitment Verification: While this piston ring set is engineered to OEM specifications for Deutz air-cooled diesel applications, always confirm your engine's bore diameter (100.00mm), ring groove dimensions, and cylinder condition before ordering. Consult Deutz Workshop Manual for FL912/F4L912/F6L912/3RT or a certified diesel engine technician for installation guidance.

⚠️ Technical Warning: Piston ring replacement requires precision cylinder honing, proper ring gap measurement, and technical expertise. Improper installation may cause compression loss, excessive oil consumption, or catastrophic engine failure. Always follow manufacturer specifications for ring orientation, gap staggering, and break-in procedures.

© 2026 Reliable Aftermarket Parts. All Deutz part numbers and trademarks are property of DEUTZ AG. This is an aftermarket replacement component manufactured to meet or exceed OEM performance standards. Not affiliated with, endorsed by, or sponsored by DEUTZ AG or any other OEM manufacturer.

100MM STD Piston Ring Set Fits For Deutz 3RT FL912 04230683 04156566 04152179

04230683 04156566 04152179 04154893 04231722

1)We had supplied deutz diesel engine and spare parts for many years, and all of our spare parts are using for assemblying the complete deutz engine, with good quality and competitive price, and had been exported to many other countries.

Please note : If you require the size of the Piston Rings, please message us directly we will share all the sizes with the best possible information & photos.

This Listing is compatible for 1 Piston only. If you do require set for your complete engine please book your order according to your engine specifications.

THIS PISTON RINGS SET PHOTO IS FOR 1 PISTON. IF YOU WANT SET FOR COMPLETE ENGINE, PLEASE BOOK ORDER FOR 3 CYL or 4 CYL or 6 CYL AS PER YOUR ENGINE REQUIREMENT.

Any query, you can free to ask from us through eBay messages. We try our best to provide you all the details...

2)Such as Deutz FL511; B/FL912/W/913/C; B/FL413/513/F/C;BFM1015/CP TCD2015; BFM1013 BFM2012; TBD226B,TBD234,TBD620,TBD604diesel engines with competitive price, like crankshaft, camshaft, crankcase, connecting rod, oil pump, oil cooler, oil filter, , air filter, fuel pump, water pump, flywheel, cylinder head, cylinder liner, piston,piston pin, piston ring, circlip, valves, valve cover, belt tensioner, starter motor, alternator, rocking arm and so on.

!!...BULK INQURIES ARE ALSO ACCEPTED AT ATTRACTIVE PRICES...!!

PISTON RINGS: THE PISTON RING LISTING IS QUANTITY FOR 1 PISTON i.e 1CYL.

(PLEASE IGNORE IF IN PHOTO MENTIONED X3 / X4 / X6)

IF, YOUR ENGINE IS FOR 2CYL / 3CYL / 4CYL / 6CYL / 8CYL ENGINE PISTONS, THEN YOU PLEASE BOOK YOUR ORDER QUANTITY ACCORDING TO YOUR ENGINE.

OVERSIZE: IF YOU DO REQUIRE OVERSIZE PISTON RINGS ALSO LIKE 010 / 020 / 030 / 040 / 060 / 080 / 100 ETC.

WE CAN ALSO BE ABLE TO SUPPLY YOU THE SAME. IF OVERSIZE, PLEASE MESSAGE US WHAT SIZE YOU DO REQUIRE TO CHECK & ARRANGE ITS AVAILABILITY.

SPECIAL SIZE: IF ANY SPECIAL SIZE IS REQUIRED FOR YOUR ENGINE, PLEASE DO INFORM WE CAN ABLE TO ARRANGE THE SAME FOR YOU ALSO?

SPECIAL PRODUCT: ANY KIND OF AUTO PARTS, WE ABLE TO SUPPLY YOU AGAINST YOUR SAMPLE / DRAWINGS. WE ABLE TO MANUFACTURE & SUPPLY THE SAME ACOORDING TO CUSTOMER?S REQUIREMENT.

RETURN POLICY: WE ALWAYS TRY OUR BEST FOR HASSALE FREE BUSINESS TRANSACTION. BUT STILL IF ANY PROBLEM OCCUR, BEFORE OPENING ANY KIND OF RETURN REQUEST, YOU CAN CONTACT US DIRECTLY WE ARE HAPPY & TRY TO SATISFY YOU IN ALL RESPECT? IN CASE OF ANY PROBLEM LIKE DIDN?T LIKED OR DIDN?T FIT, WE ARE READY TO REFUND YOU AFTER THE INSPECTION OF THE ORIGINAL PRODUCT & MUST BE INTO ITS ORIGINAL PACKAGING. BUYER PAYS FOR THE RETURN SHIPPING CHARGES.

FEEDBACK: YOUR POSITIVE FEEDBACK IS IMPORTANT & VALUABLE TO US. WE ALWAYS LEAVE POSITIVE FEEDBACK TO OUR BUYER AS A GOOD MEMORY FOR SMOOTH BUSINESS.

EBAY MESSAGES: YOUR ALL MESSAGES ARE IMPORTANT TO US. WE KNOW TIME IS VERY IMPORTANT. WE ARE TRYING TO DO QUICK REPLY, BUT SOMETIMES PLEASE ALLOW RESPONSE TIME 12-48HRS.

COMPATABILITY: WE HAVE LISTED ALL OUR PRODUCTS WITH MUCH & MUCH INFORMATION AS POSSIBLE BY US. WE DO UNDERSTAND FROM LISTING YOU CAN ABLE TO GET ALL THE POSSIBLE DETAILS WHICH YOU REQUIRED ALSO YOU CAN CROSS-CHECK REFERENCE NUMBER FROM GOOGLE PORTAL ALSO IF INCASE YOU HAVING DOUBT.

SHIPPING: THERE ARE MANY MODES OF SHIPPING METHOD AVALAIBLE. WE TRY OUR BEST THAT OUR CUSTOMERS WILL GET THE PARCEL AS SOON AS PARCEL WITHOUT ANY DELAY.

BUT SOMETIME IF DELAY IN PARCEL DUE TO THIRD PARTY, SOME THINGS ARE BEYOND OUR CONTROL. SO WE JUST REQUEST YOU TO PLEASE MESSAGE US & WE TRY TO ESCALATE YOUR QUERY & UPDATE YOU TIME TO TIME & TRY TO GET YOUR THE PARCEL DELIVERED TO YOU. ALL ITEMS ARE OF FREE SHIPPING. IF YOU WANT QUICKEST DELIVERY THEN PLEASE MESSAGE US TO PROVIDE ALTERNATE SHIPPING METHOD WITH ADDITIONAL COST.

TAXES: OUR PRICE IS INCULDED FREE SHIPPING & PRODUCT COST. ANY KIND OF VAT, GOVERNMENT TAXES OR IMPORT DUTY IS NOT CHARGED BY US. IF ANY IMPORT CHARGES, PLEASE CHECK YOUR COUNTRY RULES & REGULATIONS. IMPORT CHARGES ARE VERY NOMINAL BUT SOMETIMES IT VARY FROM ITEM TO ITEM & COUNTRY TO COUNTRY.

ANY KIND OF CONFUSION OR INFORMATION YOU REQUIRED, PLEASE FEEL FREE TO MESSAGE US.