ENGINE PARTS
Mini

Mini

Standard, Heavy Duty or Pro Series?

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STANDARD SERIES

More economically priced but without compromising quality and performance. The shape is optimized depending on the model, some come in an H-Beam shape and others in I-beam shape. Depending on the application and if it is turbo or N/A use the design is customized for weight and rigidity.

HEAVY DUTY SERIES

Built from the finest raw materials with a specially optimized shape which also accommodates a 3/8th bolt in all applications. The design of these rods has been developed, based on our experience, to each application individually in order to optimize the design depending on each engines character.
The new Heavy-Duty series conrods from ZRP easily fulfill the highest standards of Motorsport.

PRO SERIES 817M40T – EN24T ALLOY

In our continual quest for improvement, we proudly introduce an all new series of ZRP conrods, aimed for the Extreme applications.
Built from the finest raw materials with a specially optimized shape which also accommodates a 3/8” L19 cap fasteners in all applications.
For those that are not familiar with this, let us say that it is a high tensile alloy steel, renowned for its wear resistance properties. 817M40T steel is a popular grade of through-hardening alloy steel due to its excellent machinability in the “T” condition, the hardness is in the range 248/302 HB. 817M40T – EN24T can be further surface-hardened to create components with enhanced wear resistance by induction or nitriding processing. These qualities make it the finest material you can use for Conrods manufacturing, where high strength properties are required.

ZRP Connecting Rods Features

• AMPCO 18 bushings for excellent resistance to wear and fatigue • Bushings include radial groove for oil reservoir • Shot Peening for improved fatigue life • Magnaflux Inspection guarantees the consistency of the forged material meets our high-quality standard • Multi Stage Heat Treatment for maximum strength, dimensional stability, and fatigue life • CNC machining for superior tolerances as tight as 0.0002″ • Center to center is a maintained to .001″ tolerance • Finite Element Analysis FEA Computer generated stress analysis of con rods • Bend and twist is tightly controlled • Optimal balancing for weight matched sets ± 1gram

No matter what your racing field is, drag, drift, or time attack, ZRP‘s new series of connecting rods will keep your engine revving!

SUPERSPORT OR DIAMOND SERIES?

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SUPERSPORT SERIES

As the name suggests, these will be developed for mild to high tuning mainly for road or race cars that want to develop their engine for high mileage and/or street use. These will be designed by ZRP engineers and manufactured in Germany from 4032 (T6) high-silicon alloy, low-expansion alloy which allows the engine builder to run a closer piston to bore tolerance thus producing a better seal. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. We have chosen Round Style Skirt design for Turbo Application and X-Style skirt for Natural aspirated engines with Over size and deeper valve pockets to allow even the most extreme camshaft profiles to be used. They have Offset pins for quiet operation and the wrist pins are made from 9310 alloy. Other features include Anti-detonation grooves to protect the first rings, gas pressure accumulator groove for better ring seal and vibration relieve. Premium Japanese quality 1.00mm x 1.20mm x 2.80mm ring package included.

Optional coatings available per request:
Thermal barrier coating “Blast Off Bronze” / Moly Side-Skirt and Under-Crown coating “Stealth Black”

DIAMOND SERIES

The high-performance pistons series will be called “Diamond Series” and they will be engineered with only one thing in mind: WINNIG RACES. These will be manufactured from Diamond Racing in the USA from 2618 material. Diamond racing company is known from the late 60s to produce the highest quality engine parts around. The past 2 decades Diamond has solely dedicated itself to manufacturing forged pistons. With all state of the art machinery they offer customers the state of the industry in machining. The Coordinate Measuring Machine (CMM) is one of several sophisticated pieces of measuring and modeling apparatus used in Diamond’s engineering department. The CMM provides very accurate measurements, measuring the location and details of valve pockets, for example, to within a .0001in. This laser scanner is used for modeling purposes, especially for scanning piston domes where it scans thousands of surface points in minutes. Developing the highest quality pistons in the industry by using the latest CNC machinery and computer software aids, as well as providing unmatched quality control. With these credentials it was only a matter of time before we decide that this is the firm to work with for making unlimited horsepower!

Optional coatings offered per request:
Thermal barrier coating “Blast Off Bronze” / Moly Side-Skirt and Under-Crown coating “Stealth Black” / Hard anodized coating / Double diamond coating / PTFE coating, Hard anodized and Teflon seal coating

Part # Application Shape Length (CC) Pin Size Big Bore B.E Width Weight (gr) Bolt Size Series Footnote Engine Number Availability
R-MIN-004-I 2.0L N20
I-Beam
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144.35
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22.00
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53.635
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20.88
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487
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3/8"
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Standard Series
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Non-Tapered Pin End / Straight PE
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R-BMW-022-I 2.0L N20
I-Beam
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144.35
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22.00
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53.635
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20.88
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487
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3/8"
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Standard Series
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Non-Tapered Pin End / Straight PE
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N20B20, N20B30
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R-MIN-003-I 2.0L B48 / B20 Turbo (F-Series), 2.0L F Series & JCW engine B48 (2014-Current)
I-Beam
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148.17
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22.00
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53.60
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23.90
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494
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3/8"
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Standard Series
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Tapered Pin End
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B48A20B (F54, F55, F56, F57)
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R-MIN-001-I 1.6L Cooper S R53, 1.6L R53 Supercharger - W11B16
I-Beam
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131.60
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21.00
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49.00
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23.25
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453
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3/8"
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Standard Series
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-
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W11B16
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R-MIN-002-I 1.6L (EP6)
I-Beam
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138.55
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20.00
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48.00
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20.87
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450
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3/8"
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Standard Series
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Tapered Pin End
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N12B16 / N14B16 / N18B16A / N18B16B / N18B16C
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Part # Application Bore Size Comp. Ratio OEM CR Comp Height Stroke Rod Length Wrist Pin Size Deck Clr Dome cc's Availability
42501-770 1.6L (EP6)
product info

• 4032-T6 High-Silicon / Low-Expansion alloy
• Gas pressure accumulator and Anti-Detonation grooves
• Round skirt style
• Over size and deeper valve pockets
• 9310 alloy wrist pins / Cylindrical shape
• Offset pins for quiet operation
• Premium 1.0 x 1.2 x 2.8 rings included
• Block Height : 210.50mm
• C/R Calculated w/ Gasket 0.90mm x 78.0mm
• Top Ring Down :
• Head cc’s : 37.60

77.00mm 10.5:1 10.5:1 28.50mm 85.80mm 138.55mm 20.00mm -0.55cc Out of stock Add to cart
42501-775 1.6L (EP6)
product info

• 4032-T6 High-Silicon / Low-Expansion alloy
• Gas pressure accumulator and Anti-Detonation grooves
• Round skirt style
• Over size and deeper valve pockets
• 9310 alloy wrist pins / Cylindrical shape
• Offset pins for quiet operation
• Premium 1.0 x 1.2 x 2.8 rings included
• Block Height : 210.50mm
• C/R Calculated w/ Gasket 0.90mm x 78.0mm
• Top Ring Down :
• Head cc’s : 37.60

77.50mm 10.5:1 10.5:1 28.50mm 85.80mm 138.55mm 20.00mm -0.55cc Out of stock Add to cart
Part # Application Stroke Main Journal Rod Journal Weight Kg. Crank. Grade Foot Note Engine Number Availability
C-MIN-001UL 1.6L Cooper S R53, 1.6L R53 Supercharger - W11B16
85.50mm
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54.97mm
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48.00mm
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12,750
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4340 Billet
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Std Stroke
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W11B16
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Part # Application Type Notes Size Material Availability
101-2202 1.6L Cooper S R53
Clutch Cover Pressure Plate Bolts
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M9 x 1.25
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8740 Chrome Moly / 190.000psi
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101-2801 1.6L (EP6)
Flywheel Bolt Kit
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M9 x 1.25
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Pro Series - 190.000psi
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206-6008 1.6L Cooper S R53
Rod Bolt Kit
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Hi-Perf. 8740
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8740 Chrome Moly / 190.000psi
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201-5401 1.6L (EP6)
Main Stud Kit
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8740 Chrome Moly / 190.000psi
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201-4301 1.6L Cooper S R53
Head Stud Kit
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12-Point Nuts
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8740 Chrome Moly / 190.000psi
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201-4304 1.6L (EP6)
Head Stud Kit
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Pro Series - ARP2000 - 12-Point Nuts
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ARP2000 / 220.000psi
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206-3601 1.6L Cooper S R53
Head Bolt Kit
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12-Point Nuts
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8740 Chrome Moly / 190.000psi
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101-2201 1.6L (EP6)
Clutch Cover Pressure Plate Bolts
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M8 x 1.25
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8740 Chrome Moly / 190.000psi
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Part # Application Size Availability
4B2902H-STD 1.6L Cooper S R53, 1.6L R53 Supercharger - W11B16 STD Out of stock Add to cart
4B2902HX-STD 1.6L Cooper S R53, 1.6L R53 Supercharger - W11B16 +0.025mm Extra Clearance Out of stock Add to cart
4B2902H-.025 1.6L Cooper S R53, 1.6L R53 Supercharger - W11B16 +0.025mm Oversize Out of stock Add to cart
4B2902H-.25 1.6L Cooper S R53, 1.6L R53 Supercharger - W11B16 +0.25mm Oversize Out of stock Add to cart
4B2903H-STD 1.6L STD In stock Add to cart
4B2903HX-STD 1.6L +0.025mm Extra Clearance Out of stock Add to cart
4B2903H-.025 1.6L +0.025mm Oversize Out of stock Add to cart
4B2903H-.25 1.6L +0.25mm Oversize Out of stock Add to cart
4B7787H-STD 1.6L (EP6) STD Out of stock Add to cart
4B7787HX-STD 1.6L (EP6) +0.025mm Extra Clearance Out of stock Add to cart
4B7787H-.025 1.6L (EP6) +0.025mm Oversize In stock Add to cart
4B7787H-.25 1.6L (EP6) +0.25mm Oversize Out of stock Add to cart
5M7788H-STD 1.6L (EP6) STD Out of stock Add to cart
5M7788HX-STD 1.6L (EP6) +0.025mm Extra Clearance Out of stock Add to cart
5M7788H-.025 1.6L (EP6) +0.025mm Oversize In stock Add to cart
5M7788H-.25 1.6L (EP6) +0.25mm Oversize Out of stock Add to cart
Part # Application Size Material Availability
338476R 1.6L (EP6)
78.50mm x 0.90mm
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AISI 301 Stainless Steel
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