LYCOMING 67605 Starter Gear Jaw
( Brand: Lycoming ), ( Manufacturer Part Number: 67605 ), ( Part Type: Starter Gear ), ( Compatible Model: Lycoming 67605 )
Review LYCOMING Starter Gear Jaw
The **Lycoming 67605 Starter Gear Jaw** is a precision-engineered component designed specifically for Lycoming aircraft engines, serving as a critical link between the starter motor and the engine s starter ring gear. Crafted from high-grade, heat-treated steel, this gear jaw is built to withstand the rigorous demands of repeated engagement and disengagement during engine starts, ensuring reliable performance even in demanding environments. Its robust construction features a robust, interlocking design that guarantees a secure and precise connection with the starter drive, minimizing slippage and wear over extended use. The gear jaw is meticulously machined to exacting tolerances, allowing for smooth operation and optimal torque transfer from the starter motor to the engine s starter ring gear, which is essential for cranking the engine under load. Whether installed on a Lycoming O-320, O-360, IO-360, or other compatible models, this component plays a vital role in the reliable ignition sequence, contributing to the overall dependability of the aircraft s powerplant. Built to meet stringent aviation industry standards, the 67605 gear jaw is a replacement part designed for durability, efficiency, and compatibility with original equipment specifications, ensuring that pilots and mechanics can trust it for countless engine starts without compromise.
**Pros and Cons of Buying a Lycoming 67605 Starter Gear Jaw**
The Lycoming 67605 starter gear jaw is a critical component for Lycoming aircraft engines, particularly those in the 6700 series. Below is a detailed breakdown of its advantages and disadvantages, followed by a conclusion and recommendation.
### **Pros**
1. **Essential for Engine Reliability** The starter gear jaw is a wear-prone part that directly engages with the starter motor to crank the engine. A functional gear jaw ensures smooth and reliable engine starting, reducing the risk of starter failure or damage during cranking.
2. **Prevents Costly Engine Damage** If the gear jaw fails, the starter motor may grind against the engine s flywheel or starter ring gear, leading to severe damage to both components. Replacing a damaged gear jaw early can avoid expensive repairs to the starter or engine internals.
3. **Available from Authorized Sources** Lycoming (now part of Hartzell Propeller) and approved distributors provide genuine OEM parts, ensuring compatibility and durability. Aftermarket alternatives may exist, but they may not meet the same quality or safety standards.
4. **Relatively Simple Replacement** Replacing the gear jaw is a straightforward procedure that can be done with basic tools and mechanical skill. It typically requires removing the starter motor, replacing the jaw, and reassembling the system no major engine disassembly is needed.
5. **Extends Starter Motor Life** A worn or damaged gear jaw can cause excessive wear on the starter motor s pinion gear, reducing its lifespan. Replacing the jaw periodically helps maintain starter health and prevents premature failure.
6. **Warranty Coverage (If Applicable)** If the gear jaw fails due to a manufacturing defect, some OEM warranties may cover replacement, though this depends on the engine s service history and maintenance records.
### **Cons**
1. **Wear and Tear Over Time** The gear jaw is subject to high stress during engine cranking, especially in cold or high-altitude conditions. It naturally wears out with repeated use, requiring periodic inspection and replacement.
2. **Potential for Misalignment or Binding** If the gear jaw is not properly installed or if the starter motor is misaligned, it can cause grinding or failure. Improper installation can also lead to premature wear on the starter s internal components.
3. **Limited Lifespan Compared to Other Components** While the gear jaw itself is not overly expensive, it is a consumable part that must be replaced at recommended intervals (typically every 1,000 2,000 hours or as part of a starter overhaul).
4. **Dependence on Proper Maintenance** Neglecting to inspect or replace the gear jaw when worn can lead to catastrophic failure. Pilots and mechanics must adhere to maintenance schedules to avoid unexpected in-flight or pre-flight issues.
5. **Cost of Replacement Parts** While not excessively expensive, the gear jaw is not a free part. Prices typically range from $50 to $150 depending on the source (OEM vs. aftermarket). Additional labor costs may apply if the replacement is done by an aviation mechanic.
6. **Risk of Counterfeit or Low-Quality Parts** Purchasing from unapproved sources increases the risk of receiving substandard or counterfeit parts, which could fail prematurely and compromise safety.
### **Conclusion**
The Lycoming 67605 starter gear jaw is a small but critical component that plays a significant role in engine starting reliability and overall aircraft safety. Its primary advantage lies in preventing costly starter or engine damage by ensuring smooth cranking. However, it is a wear item that requires regular inspection and replacement to avoid failure.
The decision to purchase one should be based on the need for maintenance rather than as a standalone purchase. If you are performing a starter overhaul, replacing the gear jaw is a prudent and cost-effective measure. For operators who delay maintenance, the risk of failure increases, potentially leading to more expensive repairs or operational downtime.
### **Recommendation**
1. **Replace as Part of Routine Maintenance** If you are conducting a starter overhaul or have exceeded the recommended service interval for the gear jaw, purchase and install a genuine OEM part. This ensures compatibility and reliability.
2. **Inspect Before Flight** Always check the gear jaw for wear, cracks, or damage during pre-flight inspections. If it appears worn or damaged, replace it immediately before attempting to start the engine.
3. **Use Approved Sources** Purchase the gear jaw from an authorized Lycoming distributor or a reputable aviation parts supplier to avoid counterfeit or low-quality alternatives.
4. **Document Replacements** Keep detailed records of all gear jaw replacements, including installation dates and service hours. This helps track maintenance intervals and ensures compliance with manufacturer recommendations.
5. **Consider a Starter Overhaul** If the starter motor is nearing the end of its service life, replacing the gear jaw as part of a full overhaul is a cost-effective way to extend its usability while ensuring all critical components are in good condition.
In summary, the Lycoming 67605 starter gear jaw is a worthwhile investment when needed for maintenance, but it should not be procured unnecessarily. Prioritize it as part of a broader starter or engine service plan to maximize reliability and minimize risk.
Details:
LYCOMING 67605 STARTER GEAR / JAW Each sold separately.
part #: 67605 price
- $225.00
specifications engineaviatio:
- brand: Lycoming
- mpn: 67605
- part type: Starter Gear
- compatible model: Lycoming 67605
payments engineaviatio:
- cash
- check
- credit card: Diners-club
- wallet: Google-pay
- money order
- other
general engineaviatio:
- condition: Used
- Aviation Parts Accessories > Engines > Engine Components
returns engineaviatio:
- time: 30 Days
- paid by: Seller
- policy: Returns Accepted
offer engineaviatio:
- quantity: 2
- started: February 13, 2026
- availability: In Stock
- options: Ship-to-home
- sold: 0
shipping engineaviatio:
- service: USPS Ground Advantage
- class: Standard
- transit: 6-12 Days
- carrier: USPS
- type: Fixed
- cost: $0.00
seller engineaviatio:
- rating: 100.0%
- city: Hastings, Florida
- # reviews: 1513
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