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3.0L 24v - EA839
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3.0L 24v - EA839
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Set of 6 forged 4340 steel connecting rods for Porsche 3.0L 24V Turbo EA839.
Part of the Volkswagen Group's modular EA839 family, this 3.0 TFSI petrol V6 displaces 2,995 cc and was engineered by Audi before being shared with Porsche. It keeps the 'hot-vee' layout, with the turbocharger nestled in the V between the two banks to shorten the gas paths and sharpen response. With an 84.5 mm bore and a long 89 mm stroke, this twin-scroll single-turbo unit powers the Porsche Panamera (971) and Cayenne (9YA), and is also found in the Audi S4, S5 and SQ5 (B9), where it reaches 354 hp.
When boost pressure or ECU tuning rises, the loads borne by the rotating assembly climb quickly. Forged 4340 connecting rods push the failure threshold back and deliver lasting bottom-end reliability — an essential step before exploiting extra torque with confidence.
The connecting rod links the piston to the crankshaft and turns the piston's back-and-forth motion into rotation. On every cycle it takes a violent compression during combustion then tension on the exhaust stroke. As soon as an engine is tuned these loads intensify and the factory rod, often sintered steel, becomes the assembly's weak point.
Hot-forged from alloy steel, a forged rod gains a continuous grain flow that gives it far greater fatigue endurance than a cast or sintered part. Machined, balanced and assembled with high-performance bolts, it forms the foundation of a reliable tuned engine.
| Reference | Brand | Profile | Bolts | Pin diameter | Small-end width | Big-end diameter | Big-end width | Center-to-center | Weight per rod |
|---|---|---|---|---|---|---|---|---|---|
| R-POR-002-I | ZRP | I | ARP 2000-5/16"-38mm | 20 mm | 58.8 mm | 20.05 mm | 155 mm | 522 g | |
| R-POR-002-I-L19 | ZRP | I | ARP L19-5/16"-38mm | 20 mm | 58.8 mm | 20.05 mm | 155 mm | 522 g |
| Rod | Bolts | Tightening torque | Recommended stretch |
|---|---|---|---|
| ZRP (R-POR-002-I) | ARP 2000 | 40.7 N·m | 0.140 – 0.152 mm |
| ZRP (R-POR-002-I-L19) | ARP L19 | 54.2 N·m | 0.127 – 0.140 mm |
Makers prefer stretch-gauge checking to torque alone: measuring the bolt's real elongation guarantees an even preload that matches the prescribed values.
4340 is a low-alloy steel with nickel, chromium and molybdenum. Valued for combining high tensile strength, toughness and excellent fatigue endurance, it has become the reference material for performance forged rods.
 | I-beam profile : an I-shaped body section. Light and rigid, it offers the best weight-to-strength balance for most boosted engines, from road to track; it is the profile chosen for these EA839 rods. |
The bolts clamp the rod cap and govern how the assembly holds up in use. On a high-output engine they are a true safety part: pick them to match the intended build level.
 | ARP 2000 : heat-treated alloy steel with roughly 220,000 psi tensile strength. Versatile, it covers the vast majority of road and sport builds. |
 | ARP L19 : ultra-high-strength steel (around 260,000 psi), reserved for extreme builds and high rpm. Corrosion-sensitive, it calls for oiled assembly and careful storage. |
| On high-performance bolts, tightening is best set by measuring bolt stretch rather than torque: accuracy is far higher. A stretch gauge makes this check possible during assembly. |
 | ZRP (Race Winning Brands): forged 4340 connecting rods, carefully machined and balanced. Offered here in I-beam profile, with ARP 2000 or ARP L19 bolts. |
Center-to-center: distance between the small-end centre (piston pin) and the big-end centre (crank pin). Small end: takes the piston pin. Big end: closes around the crankshaft journal. Bolts: cap bolts that clamp the big end.
These forged connecting rods fit all the vehicles powered by the 3.0 turbo V6 of the EA839 family listed below.
| Make | Model (chassis) | Engine code | Power | Years |
|---|---|---|---|---|
| Porsche | Panamera (971) | EA839 | 330 hp | 2016 – 2023 |
| Porsche | Cayenne (9YA) | EA839 | 340 hp | 2017 – 2024 |
| Audi | S4 (B9) | EA839 | 354 hp | 2016 – 2024 |
| Audi | S5 (B9) | EA839 | 354 hp | 2016 – 2023 |
| Audi | SQ5 (B9) | EA839 | 354 hp | 2017 – 2024 |
Fitting forged rods at the build stage costs far less than rebuilding a wrecked engine. When a rod fails it almost always destroys the block, crankshaft and cylinder head; securing the rotating assembly from the outset protects a much heavier investment and lets you drive with confidence.
