fits model: Rsx. make: Acura. year: 2002–2004.

( Type: Connecting Rod ), ( Ipn: Bp733 ), ( Oe/oem Part Number: 13210-prb-a01 ), ( Country Of Origin: Japan )
The **Acura BP733 Connecting Rod for the RSX (Type S, 2002 2004)** is a precision-engineered, high-performance replacement part designed to restore peak mechanical integrity to the iconic **K20A2 2.0L DOHC inline-four engine** found in the first-generation Acura RSX (AZ3). Crafted from **forged 4140 chromium-molybdenum steel**, this connecting rod is built to withstand the extreme stresses of high-revving, turbocharged, or naturally aspirated applications, ensuring durability and reliability under demanding conditions. The rod features a **13210-PRB-A01** part number, matching OEM specifications with a **73mm (2.874-inch) small-end diameter** and a **13mm (0.512-inch) bolt circle**, allowing for seamless integration with the stock crankshaft and piston assembly. Its **fully machined surfaces** including polished rod journals and precision-ground small-end bores minimize friction and reduce wear, while the **heat-treated oil holes** ensure consistent lubrication even under extreme loads. This rod is an ideal upgrade for enthusiasts looking to enhance engine longevity, whether for a **stock tune, forced induction build, or high-mileage restoration**, as it maintains the structural integrity required for the K20A2 s aggressive valve timing and high-RPM operation. Built to Acura s exacting standards, it eliminates the risk of premature failure, making it a trusted choice for both OEM replacement and performance modifications.
### **Pros and Cons of Buying a 1998 Acura RSX (Type S) with a BP733 Connecting Rod (K20A2 2002-2004, 1998cc, DOHC)**
#### **Pros**
1. **Performance Potential**
- The **K20A2** engine (2.0L DOHC) is a well-regarded inline-four, known for its reliability when maintained properly. With the **BP733 connecting rod**, it can be tuned for better power, especially with aftermarket upgrades like intake, exhaust, or forced induction.
- The **1998 Type S** (with the BP733 rod) is often considered a "stealth" version of the RSX, offering a balance between sportiness and practicality.
2. **Modding Community & Support**
- The **RSX platform** has a strong aftermarket, with widespread availability of parts, tuning solutions, and forums (e.g., **Type S World, RSX.net**).
- The **K20A2** benefits from a large tuning community, making it easier to find support for modifications.
3. **Reliability (If Well-Maintained)**
- The **BP733 rod** is a common upgrade for the **K20A1** (pre-2002), improving durability under high stress (e.g., forced induction).
- The **Type S** (1998) is mechanically similar to later models but may have fewer electronic quirks compared to later RSX generations.
4. **Driving Experience**
- The **Type S** offers a **manual transmission option** (if available), which enhances engagement and is preferred by enthusiasts.
- The **sport-tuned suspension** (compared to the base RSX) provides a more responsive and engaging drive.
5. **Resale Value & Collectibility**
- The **1998 Type S** is a **rare variant** (especially with the BP733 rod), making it more desirable among collectors.
- Early RSX models (pre-2002) are often sought after for their simplicity and lack of later electronic issues.
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#### **Cons**
1. **Potential Reliability Issues**
- The **K20A2** (2002-2004) is generally reliable, but **poor maintenance** (e.g., neglected oil changes, timing belt issues) can lead to catastrophic failure.
- The **BP733 rod** is an upgrade, but if the rest of the engine isn t properly supported (e.g., head gaskets, oil pump), it may not prevent long-term problems.
2. **Electronic Quirks & Aging Tech**
- The **1998 Type S** may have **older wiring harnesses** and **less refined electronics** compared to later models, leading to occasional glitches.
- The **manual transmission** (if equipped) can be **less refined** than later RSX manuals, with potential clutch and shift linkage wear.
3. **Fuel Economy & Practicality**
- The **K20A2** is not a high-mileage engine, and **forced induction** (if added) will significantly reduce fuel efficiency.
- The **Type S** is **less practical** than later RSX models (e.g., no rear AC, less cargo space).
4. **Cost of Maintenance & Mods**
- **Parts can be expensive** due to age and rarity, especially for **non-OEM aftermarket upgrades**.
- **Tuning and forced induction** (e.g., turbocharging) require **proper engine support** (e.g., upgraded internals, cooling, fuel system), which adds cost.
5. **Market Availability & Condition**
- Finding a **well-documented, properly maintained** example can be difficult.
- **Common issues** to check for:- **Timing belt & water pump** (critical for longevity).
- **Head gasket leaks** (common in K-series engines).
- **Suspension wear** (struts, bushings, ball joints).
- **Electrical gremlins** (faulty sensors, wiring issues).
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### **Conclusion & Recommendation**
#### **Best For:**- **Enthusiasts who prioritize driving dynamics and modding potential** over daily practicality.
- **Buyers who appreciate rare variants** (the **1998 Type S with BP733 rod** is a sought-after collectible).
- **Those willing to invest time and money in maintenance and upgrades** to keep the engine reliable.
#### **Not Ideal For:**- **Daily drivers** who need reliability without frequent maintenance.
- **Buyers who want a plug-and-play, low-effort project** (this car requires attention).
- **Those on a tight budget**, as parts and mods can add up quickly.
#### **Final Recommendation:**If you **find a well-maintained example** (with **full service history, no head gasket leaks, and a solid engine**), the **1998 Acura RSX Type S with BP733 rod** is an **excellent project car** with strong performance potential. However, **budget for maintenance, upgrades, and potential repairs** this is not a "set-and-forget" purchase.
**Best Approach:**- **Get a pre-purchase inspection** (focus on timing belt, head gaskets, suspension, and electrical system).
- **Consider a manual transmission** if available (more engaging, but check clutch condition).
- **Plan for upgrades** (intake, exhaust, or forced induction) if you want to maximize power.
- **Join RSX forums** for advice on common issues and modding paths.
**Verdict:** **Buy if you re prepared for the commitment; avoid if you want a hassle-free classic.**
OE ACURA USED Bps 733 CRHO-046S.