HKS 1803-SA043 Silicon Hose 65

( Brand: Hks ), ( Part Type: Hose ), ( Manufacturer Part Number: 1803-SA043 ), ( Alt Mpn 1: Hks1803-sa043 ), ( Average Delivery Time: 2-3 Days ), ( Package Weight: 1.0000 ), ( Package Length: 6.00 ), ( Manufacturer Warranty: 30 Days )

Review HKS Silicon hose Purple 65 fits 1970

The HKS 1803-SA043 Silicon Hose is a high-performance replacement component designed for various applications in the automotive industry. This hose is specifically engineered for use in high-temperature and high-pressure environments, making it an excellent choice for upgrading OEM hoses in performance vehicles.

This hose is manufactured using the finest quality silicone material, ensuring superior flexibility, durability, and resistance to heat, oil, and coolant. The inner diameter of this hose is 65mm, while the outer diameter is 70mm, providing ample flow capacity for high-output engines.

The HKS 1803-SA043 Silicon Hose boasts a smooth, tapered internal design that minimizes turbulence and flow restriction, ensuring optimal fluid flow and even pressure distribution. The exterior of the hose features a braided reinforcement layer for added strength and protection against chafing and abrasion.

This hose is designed with a -6 AN fitting on one end and a -4 AN fitting on the other end, providing a secure connection and a leak-free seal. The fittings are made from stainless steel, ensuring corrosion resistance and longevity.

The HKS 1803-SA043 Silicon Hose is an excellent upgrade for performance vehicles, providing superior reliability, durability, and flow capacity compared to OEM hoses. Its high-quality silicone material, tapered internal design, and stainless steel fittings make it an ideal choice for those seeking optimal performance and peace of mind. Whether you're building a high-performance engine or simply looking for a reliable replacement hose, the HKS 1803-SA043 Silicon Hose is an excellent investment for your vehicle.

HKS 1803-SA043 Silicon Hose: A Detailed Analysis

The HKS 1803-SA043 is a high-performance silicon hose designed for various applications in the automotive industry. This hose is known for its durability, flexibility, and ability to withstand high temperatures. In this analysis, we will discuss the pros and cons of investing in this hose.

1. Durability: Silicon hoses are more resistant to cracking, tearing, and swelling compared to rubber hoses. The HKS 1803-SA043 is designed to withstand extreme temperatures and pressures, making it an excellent choice for high-performance applications.

2. Flexibility: The silicone material used in the HKS 1803-SA043 hose offers superior flexibility. This flexibility allows the hose to conform to different shapes and sizes, making it easier to install and reducing the risk of hose damage during installation.

3. Aesthetics: The HKS 1803-SA043 hose has a sleek and modern appearance. Its smooth and shiny surface makes it an attractive addition to any engine bay, especially for those who take pride in their vehicle's appearance.

4. Improved Performance: The HKS 1803-SA043 hose can help improve the performance of your engine by reducing the restriction caused by rubber hoses. This improvement can lead to better fuel efficiency and increased power output.

1. Cost: Silicon hoses are generally more expensive than rubber hoses. The HKS 1803-SA043 hose is no exception, making it a more significant investment for some.

2. Weight: Silicon hoses are heavier than rubber hoses due to their material composition. This increased weight may require additional support during installation, adding to the overall cost and complexity of the project.

3. Sensitivity to UV Light: Silicon hoses are sensitive to UV light, which can degrade the material over time. Prolonged exposure to sunlight may cause the hose to crack, leading to leaks and potential engine damage.

4. Installation Complexity: Installing a silicon hose can be more complex than installing a rubber hose. The hose may require additional clamps or fittings, and the installation process may take longer due to the hose's flexibility and weight.

The HKS 1803-SA043 silicon hose offers several advantages, including durability, flexibility, improved performance, and a sleek appearance. However, it also comes with some disadvantages, such as cost, weight, sensitivity to UV light, and installation complexity.

If you are looking for a high-performance hose that can withstand extreme temperatures and pressures, and you are willing to invest in the additional cost and complexity, the HKS 1803-SA043 silicon hose is an excellent choice. On the other hand, if you are on a budget or prefer a more straightforward installation process, a rubber hose may be a more suitable option for you.

If you are in the market for a high-performance hose and are willing to invest in a more expensive and complex installation process, the HKS 1803-SA043 silicon hose is an excellent choice. Its durability, flexibility, and improved performance make it a worthwhile investment for those seeking the best possible results for their engine. However, if cost and installation complexity are significant factors, a rubber hose may be a more practical and affordable alternative.

part # 1803sa043 prices

• $45.21-$53.44

specifications frazzlekits:

• for years: 1970
• brand: Hks
• part type: Hose
• manufacturer part number: 1803-SA043
• alt mpn 1: Hks1803-sa043
• average delivery time: 2-3 Days
• package weight: 1.0000
• package length: 6.00
• manufacturer warranty: 30 Days

shipping frazzlekits:

• service: FedEx Ground / FedEx Home Delivery
• type: Calculated
• carrier: FedEx
• cost: $0.00
• transit: 2-6 Days
• class: Standard

general frazzlekits:

• Car Truck Parts Accessories > Exhaust Emission Systems > Exhaust System Kits
• condition: New

returns frazzlekits:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

seller frazzlekits:

• rating: 99.6%
• # reviews: 519577

offer frazzlekits:

• availability: In Stock
• sold: 0
• started: April 1, 2026
• quantity: 1
• options: Ship-to-home

payments frazzlekits:

• credit card: Diners-club
• other
• wallet: Google-pay

Hks 1803-SA043 Is Similar To:

• Hks 1422-sa001 Purple Ssqv Insert Round (46.9% similar) $30.76–$41.33. (November 1st, 2025)
• Hks 71002-ak003 Ssqv Recirculation Fitting For 19mm Id Hose (31.7% similar) $47.44–$65.43. (April 1st, 2026)
• Hks 1803-sa042 Silicon-hose Purple 60 L 70 (95.2% similar) $51.00–$55.00. (May 1st, 2026)
• Hks 1803-sa040 Silicon-hose Purple 100 L 70 (91.8% similar) $34.83–$77.60. (May 1st, 2026)