Piston Ring Set 95.25mm STD Lister Petter 570-12910 ST STW TS 3.75" Bore

This product data sheet is originally written in English.

✅ BRAND NEW AFTERMARKET REPLACEMENT • Chrome-Plated Top Ring • Direct OEM Fit • 1-Year Warranty • Vintage Engine Specialist

📋 Part Identification

Manufacturer Part No.	570-12910 • 57012910 • LP57012910
OEM References	Lister Petter: 570-12910 • Lister Blackstone: 570-12910 • Ruston/Lister shared block variants
Cross Reference	S.41210 (Sparex ref) • VPH-PR-9525 • TB-12910 • WL-57012910 • KEPR1885
UPC / EAN	UPC: Does not apply • EAN: 5060892501231 (Aftermarket reference)
Material / Finish	Top: Chrome-Plated Ductile Iron • 2nd: Cast Iron • Oil: Stainless Steel Rails + Expander
Weight	~0.42 kg / 0.93 lbs per cylinder set

⚙️ Technical Specifications

Piston Bore Size	95.25mm STD (Exactly 3.750" Imperial) • Standard replacement size
Ring Configuration	TOP RING 3.0mm Thick Chrome Plated Taper Face 2ND RING 2.0mm Thick Cast Iron Barrel/Twist OIL RING 4.0mm Thick 3-Piece Design Stainless Rails
Ring End Gap (New)	🔹 Top: 0.30–0.55mm 🔹 2nd: 0.25–0.50mm 🔹 Oil: 0.20–0.65mm 🔹 Max Allowable: 1.50mm
Engine Compatibility	ST1/2/3/4 • STW1/2/3/4 • TS1/2/3/4 • SR/HR (95.25mm bore variants)
HS/Tariff Code	8409910090 – Parts suitable for use with diesel engines

🚜 Compatible Equipment

Lister Petter ST Series
ST1 • ST2 • ST3 • ST4 (Air & Water Cooled)

STW & TS Series
STW1-4 (Stationary) • TS1-4 (Transport/Mobile)

Industrial/Marine
Generators • Irrigation Pumps • Air Compressors • Marine Aux

Cross-Brand
Lister Blackstone • Ruston/Lister shared blocks • Petters Ltd

⚠️ CRITICAL BORE & FITMENT NOTE: This ring set is manufactured for 95.25mm (3.750") STANDARD bore cylinders. DO NOT install in oversize or worn cylinders exceeding 0.10mm out-of-spec – improper sealing, blow-by, and rapid ring wear will occur. Always measure cylinder bore with a micrometer and verify ring end gaps per Lister Petter service manual before installation. For +0.25, +0.50, +0.75, or +1.00mm oversize cylinders, see separate listings.

✅ Why Choose This Ring Set?

Precision-Machined for Lister: Manufactured to OEM dimensional tolerances for perfect groove fit and optimal compression
Chrome-Plated Top Ring: Superior wear resistance against abrasive dust, extended oil change intervals, and high-compression diesel combustion
Advanced Oil Control: 3-piece stainless steel oil ring with expander ensures consistent cylinder wall lubrication and minimal oil consumption
Direct OEM Replacement: Drop-in installation using existing pistons and liners • No machining or modification required (on standard bore)
Quality Guaranteed: Rigorously inspected • 1-Year Manufacturer Warranty • 30-Day Returns

📦 What's Included

1x Complete 3-Ring Set for ONE Cylinder (Top Chrome + 2nd Cast Iron + 3-Piece Oil)
Installation & Gap Measurement Guide (Lister Petter ST/TS specifications)
Note: Sold per cylinder. Order multiple sets for 2, 3, or 4-cylinder engines
Note: Pistons, liners, bearings, and gaskets sold separately – see compatible parts below

🔗 Recommended Companion Parts for Full Rebuild

Complete your Lister Petter engine overhaul:

Standard Piston 95.25mm: LP-PIST-9525-STD or OEM 570-12900
Cylinder Liner 95.25mm: LP-LINER-9525 or 570-12800
Big End & Main Bearing Set: LP-BRG-STD-SET
Full Gasket Kit (ST/TS): LP-GSKT-FULL-STD
Ring Compressor Tool 95-98mm: Heavy-duty diesel engine tool
Molybdenum Assembly Lube: For initial startup protection

🔧 Professional Installation Checklist

✅ Verify cylinder bore is 95.25mm ±0.02mm with proper cross-hatch honing (180-220 grit)
✅ Measure ring end gaps in cylinder bore using feeler gauge at bottom of ring travel
✅ Stagger ring end gaps 120° apart around piston circumference (never align gaps)
✅ Install top ring with "T" or "TOP" marking facing piston crown
✅ Use proper ring expander for oil ring installation to prevent rail damage
✅ Lubricate rings, piston skirts, and cylinder walls with assembly lube
✅ Torque cylinder head & connecting rod bolts per Lister Petter service manual sequence
✅ Perform break-in procedure: 50% load for first 2-4 hours, change oil & filter at 50 hours

📦 Fast dispatch • 🌐 Ships to US, UK, EU, AU, CA, IN, ZA & 180+ countries • 🔧 Free technical support via message • ↩️ 30-day hassle-free returns

🛒 ADD TO CART – REBUILD YOUR LISTER ENGINE TODAY
✅ In Stock • ✅ Same-Day Dispatch • ✅ Lister Petter Engine Specialist

Disclaimer: This is an aftermarket replacement part manufactured to OEM specifications. All manufacturer names, part numbers, and trademarks (Lister®, Petter®, Lister Petter®) are used for identification and compatibility reference only. This product is not manufactured by or affiliated with Lister Petter Ltd or its successors. Always verify cylinder bore measurements and ring end gaps before installation. Consult official Lister Petter service manuals for torque specifications and assembly procedures.

Piston Rings Set 95.25MM STD For Lister Petter 570-12910 ST STW TS

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.

tem Specifics
Engine Model : Lister Petter
Size : STD
Piston Bore Size : 95.25mm

Brand : Aftermarket New
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...

tem Specifics
Engine Model :	Lister Petter
Size :	STD
Piston Bore Size :	95.25mm

Brand :	Aftermarket New

!!...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.

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.

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.

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.